According to the Newton's second law,
\(F=ma\)where F is the force on the object, m is the mass of the obect and a is the acceleration of the object.
Substituting the known values,
\(30=m\times5\)Thus, the mass of the object is,
\(\begin{gathered} m=\frac{30}{5} \\ m=6\text{ kg} \end{gathered}\)Hence, the mass of the object is 6 kg.
A+block+of+1.2kg+is+placed+on+an+included+plane+at+60°+to+the+horizontal.+Calculate.+a.The+force+that+will+make+the+block+to+slide+down+the+plane.B.The+coefficient+of+friction+.C.+The+normal+reaction+d.+The+friction+force
Answer:
a. 10.2 N b. 1.73 c. 58.8 N d. 10.2 N
Explanation:
a. The force that will make the block slide down the plane
This is the component of the block's weight along the plane F = mgsinθ where m = mass of block = 1.2 kg, g = 9.8 m/s² and θ = angle of incline = 60°.
So, F = mgsinθ = 1.2 kg × 9.8 m/s² × sin60°.= 10.18 N ≅ 10.2 N
b. The coefficient of friction
The coefficient of friction, μ = tanθ = tan60° = 1.73
c. The normal reaction.
This is equal to the vertical component of the block's weight. So, F = mgcosθ. Substituting the values for the variables from above, we have
F = mgcosθ = 1.2 kg × 9.8 m/s² × cos60°.= 58.8 N
d. The frictional force
Since the block does not slide, there is no net force on it. If f is the frictional force, then
F - f = ma. Since a = acceleration = 0,
F - f = 0
f = F = mgsinθ = 1.2 kg × 9.8 m/s² × sin60°.= 10.18 N ≅ 10.2 N
A zebra drinks from a watering hole and is ambushed by a crocodile. What's more important and why: the zebra having a high maximum speed or a high acceleration?
Answer:
before this type of attack, high acceleration is the most important thing.
Explanation:
As the zebra is ambushed by the crocodile the most important thing is a quick reaction, in this attack the most likely is that the crocodile is in the water so it cannot run after the zebra.
Consequently, before this type of attack, high acceleration is the most important thing.
A cell membrane consists of an inner and outer wall separated by a distance of approximately10nm. Assume that the walls act like a parallel plate capacitor, each with a charge density of10−5C/m2, and the outer wall is positively charged. Although unrealistic, assume that the space between cell walls is filled with air. If released from the inner wall, what would be the kinetic energy of a 9fC charge at the outer wall?1fC=10−15C. 1×10^−16J 1×10^−13J 0.1J 1×10^−7J
The kinetic energy of a 9fC charge at the outer wall of the cell membrane is approximately \(1 * 10^(-16) J\). The correct option is B.
The kinetic energy of a 9fC charge at the outer wall can be calculated using the following steps:
1. First, find the electric field E between the capacitor plates. Use the formula E = σ/ε₀, where σ is the charge density (10^(-5) C/m²) and ε₀ is the vacuum permittivity \((8.854 * 10^(-12) C²/Nm²).\)
\(E = (10^(-5) C/m²) / (8.854 * 10^(-12) C²/Nm²) ≈ 1.13 * 10^6 N/C\)
2. Next, find the potential difference V between the capacitor plates. Use the formula V = Ed, where d is the distance between the plates (10 nm = 10 x 10^(-9) m).
\(V = (1.13 * 10^6 N/C) * (10 * 10^(-9) m) ≈ 1.13 * 10^(-2) V\)
3. Calculate the work done W to move the 9fC charge from the inner wall to the outer wall using the formula W = qV, where q is the charge \((9fC = 9 * 10^(-15) C).\)
\(W = (9 * 10^(-15) C) * (1.13 * 10^(-2) V) ≈ 1.017 * 10^(-16) J\)
4. Since the charge is released from the inner wall and gains kinetic energy as it moves to the outer wall, the work done W is equal to the kinetic energy K of the charge at the outer wall.
\(K = 1.017 * 10^(-16) J\)
The closest option to this value is \(1 * 10^(-16) J\). So, the kinetic energy of a 9fC charge at the outer wall of the cell membrane is approximately \(1 * 10^(-16) J\).
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nuisance static charges are more likely to occur when the air is
Nuisance static charges are more likely to occur when the air is dry.
When the air is dry, it is not able to hold a sufficient amount of moisture or humidity. When the moisture content of the air is low, the air has a low electrical conductivity, which increases the likelihood of static charges.Static electricity can be created by the rubbing of two objects. When these objects are separated after rubbing, they are left with a static electric charge. The strength of the electric charge is determined by the materials used to create the two objects. Some materials are better at holding static charges than others.
Dry air only exacerbates the situation. Static charges can be a nuisance for a variety of reasons. They can cause shocks, interfere with electronic devices, and can even cause damage to sensitive equipment. In order to reduce the occurrence of static charges, it is important to ensure that the air in your environment is sufficiently humid. This can be achieved by using a humidifier or by simply placing bowls of water around the room. Additionally, anti-static products, such as sprays and mats, can be used to reduce the occurrence of static charges.
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A building contractor buys 70% of his cement from supplier A and 30% from supplier B. A total of 95% of the bags from A arrive undamaged, and a total of 90% of the bags from B arrive undamaged. Find the probability that a damaged bag is from supplier Upper A.
The probability that a damaged bag is from supplier A is approximately 0.54.
What is probability?Probability is a measure of the likelihood or chance of an event occurring. It is a numerical value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.
Let's define some events:
A: buying cement from supplier AB: buying cement from supplier BD: a bag of cement is damagedWe want to find the probability that a damaged bag is from supplier A, given that a bag is damaged:
\(P(A|D)= \dfrac{P(D|A).P(A)}{P(D)}\)
To calculate the values for this formula, we need to use the given probabilities:
$P(A) = 0.7$$P(B) = 0.3$$P(D | A) = 0.05$ (since 95% of the bags from A arrive undamaged, the probability that a bag from A is damaged is 1-0.95=0.05)$P(D | B) = 0.1$ (since 90% of the bags from B arrive undamaged, the probability that a bag from B is damaged is 1-0.9=0.1)To find $P(D), we can use the law of total probability:
P(D)=P(D∣A)⋅P(A)+P(D∣B)⋅P(B)
Plugging in the values:
P(D) = 0.05⋅0.7+0.1⋅0.3
P(D) = 0.065
Now we can calculate the conditional probability:
\(P(A|D )= \dfrac{P(D|A).P(A)}{P(D)}\)
\(P(A|D) = \dfrac{0.05\times 0.7} { 0.065}\)
P(A|D) ≈ 0.54
Therefore, the probability that a damaged bag is from supplier A is approximately 0.54.
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1- name the three things that must be present for a fire to exist. 2- water extinguishes fires in three ways. Name them. 3- there are two general types of hazards. Name them. 4- define each of the following characteristics of materials and tell each is important in industrial safety a. Flash point b. Flame point c. Ignition point d. Vapor pressure e. Specific gravity f. Evaporation rate g. Melting point h. Viscosity i. Boiling point.
1. Oxygen, heat, and fuel
These three things that must be present for a fire to exist.
2. (a) In order to put out the fire, it achieves this by removing the heat from it.
(b) Water can also be used to separate the fire from the oxygen source.
(c) It smothers it, preventing it from igniting more airborne oxygen.
Water extinguishes fires in these three ways.
3. (a)physical hazard
(b)chemical hazard
4.(a) If a liquid's flash point is lower than 60°C, it is regarded as flammable.
Regarding the security of spill cleaning activities, flash point is a crucial consideration.
When spilled, gasoline and other light fuels pose a considerable risk since they can ignite in the majority of ambient conditions.
(b) If your material's label contains a flame symbol, it means the substance is combustible, and you should review your SDS to learn more about the dangers and risks associated with using the substance.
(c) the lowest temperature at which combustible material ignites in air and continues to burn when heated (as in a bath of molten metal)
(d) The pressure that a vapor exerts on its condensed phases (solid or liquid) in a closed system at a specific temperature is known as vapor pressure.
(e) The difference between an object's density and that of a standard substance is its specific gravity.
Depending on its value, the specific gravity might indicate whether an object will float or sink in our reference substance.
(f) The ratio of the time needed to evaporate a test solvent to the time needed to evaporate the reference solvent under the same circumstances is the evaporation rate.
The findings can be stated as a relative rate, the percentage that evaporated within a given time frame, or the length of time needed to evaporate a given volume.
(g) The temperature at which a specific solid material melts, or transitions from a solid state to a liquid, is known as the melting point.
(h) The resistance of a fluid (liquid or gas) to a change in shape or motion of adjacent sections relative to one another is known as viscosity. Viscosity is a sign of flow resistance.
(i) The boiling point of a liquid is the temperature at which the pressure of the liquid's vapor equals the pressure of its surroundings.
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QN=293 The region of the JFET drain curve that lies between pinch-off and breakdown is called ________.
a. the saturation region
b. the constant-voltage region
c. the ohmic region
d. None of the above
a. the saturation region
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which is not a general characteristic of starburst galaxies?
Starburst galaxies is simply known as the rate at which the galaxy is now converting gas into stars. The statement that is not a general characteristic of starburst galaxies is that The "starburst" is thought to be caused by the presence of a supermassive black hole in the galaxy's center.
The starburst galaxy is also regarded as the free quantity of gas with which stars can be formed.They are known to be rare. A starburst is known to be an astrophysical process. It is the process of star formation happening at a rate that is large when compared to the rate that is often observed.
See full question below
Which is not a general characteristic of starburst galaxies?
The "starburst" is thought to be caused by the presence of a supermassive black hole in the galaxy's center. The observed features that us to classily a galaxy as a 'starburst" galaxy must be only temporaryphenomena in the galaxy' Supernovae occur so frequently that their effects combine to drive a galactic wind that blows material into intergalactic space. The galaxy's rate of star formation is many times higher than the rate of star formation in the Milky WayLearn more from
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a child has the kinetic energy of 71 j the mass of the child is 27kg show that the velocity of the child at this point is 2.3m/s
Explanation:
kinetic energy of child = 1/2 m v^2
71 j. = 1/2×27kg ×v^2
71×2/27= v^2
142/27 = v^2
5.3. =v^2
v= √5.3
v= 2.3 m/s
Based on the data provided, the intracellular molarity of dissolved solutes in sweet potato cells is approximately ________.
a) 0.2 m
b) 0.4 m
c) 0.6 m
d) 0.8 m
Answer:
0.4 M
Explanation:
Just did mastering bio :)
(b) specify how changes in the optic array affect movement perception.
Objects move relative to background such that it is covered and uncovered - start walking, the changes that occur in the surfaces, contours and textures provide information for perception.
Signals from the ocular, vestibular, and proprioceptive systems, among others, are used to perceive motion. One sensory system's knowledge is not reliable on its own.
The current illusion demonstrates how motion signals present throughout the scene affect how an object's perceived location is perceived. Evidently, the predominate motion signals across significant portions of visual space affect how any specific object's motion and location are perceived.
The visual system uses the shifting retinal image to deduce the trajectory and 3D structure of the moving object. The visual system infers the motion and structure of an object when the viewer is still and the object is moving.
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what are the roles of nutrient in our body
Answer:
Explanation:
roles of nutrient in our body
Building all parts of the body such as muscle, bone, teeth, and blood Producing energy (power and heat) Keeping the body in good working orderThis equation is missing which motion variable?
Answer:
Option A. a
Explanation:
Motion variables include:
1. Final velocity (vf).
2. Initial velocity (vi).
3. Time (t).
4. Acceleration (a)
5. Distance (x)
Considering the equation given in the question:
Δx = ½(vf + vi) t
We can see that the acceleration (a) is missing in the equation.
What seems to happen to the force of interaction between the charged tape and charged rod as the distance between them decreases?
As the distance between charged tape and charged rod decreases, the force of interaction between them increases.
The force of interaction between the charged tape and charged rod is governed by Coulomb's Law.
This law states that the force between two charged objects is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
So, as the distance between the charged tape and charged rod decreases, the force of interaction increases.
This is because the charges on the objects are now closer to each other, allowing for a stronger attraction or repulsion, depending on the nature of the charges (like charges repel, opposite charges attract).
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A traffic signal is supported by two cables, each of which makes an angle of 34.0 degrees with the vertical. If each cable can exert a maximum force of 675 N, what is the largest weight they can support?
The largest weight each of the cable can support if they make an angle of 34 degree to the vertical, with a maximum force of 675 N acting and each is 599.6 N.
What is weight?
Weight can be defined as the gravitational pull of a body.
To calculate the largest weight, we use the formula below.
Formula:
W = Fcos∅............. Equation 1Where:
W = largest weight F = Maximum force∅ = angleFrom the question,
Given:
F = 675 N∅ = 34 degreeSubstitute these values into equation 1
W = 675cos34°W = 599.6 NHence, the largest weight they can support is 599.6 N.
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I DONT HAVE MUCH TIME HELPP
Joshua lifted a 100-newton (N) box by doing 120 joules (J) of work. How high did he lift the box?
Answer:
1.2 meters
Explanation:
The work done by a force of a particular magnitude is defined as the product of the force in the direction of the displacement of the object and the magnitude of this displacement. Work done can be calculated by multiplying Force and Distance in the direction of force as follows.
W = F × d
W = work (J),
F = force (N),
d = shift or displacement (m).
3. A Gas has a volume of 35 Liters at 10 atm pressure. To expand the volume to 80 Liters, what will the pressure be?
4. A Gas has a volume of 85 Liters at 20 Celsius. What will its volume be in liters at 80 Celsius?
5. Gas has a volume of 600 mL at 29 Celsius. As the volume changes to 900 mL, what is the new temperature in Celsius?
Answer:
3) using Robert Boyles's law the pressure will be 4.375 atm
4) using Charle's law the volume will be 340 Liters
5) using Charle's law the new temprature will be 43.5 °C
!!!!!!PLEASE HELP ASAP !!!!!!!!!!!!
Answer: d constint speed
Explanation: im 15 and no the answer
Using a cable with a tension of 1350 N , a tow truck pulls a car 5.00 km alond a horizontal roadway. (a) how much work does the cable do on the car if it puls horizontally ? if it pulls at 35.0 degrees above the horizontal ? (b) how much work does the cable do on the tow truck in both cases of part (a)? (c) how much work does gravity do on the car in part (a)?
Using a cable with a tension of 1350 N , a tow truck pulls a car 5.00 km alone a horizontal roadway. Therefore,
(a) Cable work: 6,750,000 J horizontally.
(b) Cable work: 6,308,250 J at 35.0° above horizontal.
(c) No work by gravity.
To calculate the work done by the cable in each scenario, we need to consider the angle between the direction of the force applied and the displacement.
(a) If the cable pulls horizontally (0° above the horizontal):
In this case, the angle between the force and the displacement is 0 degrees, so the work done can be calculated as:
Work = Force * Displacement * cos(Ф)
Work = 1350 N * 5000 m * cos(0°)
Work = 1350 N * 5000 m * 1
Work = 6,750,000 J
The cable does 6,750,000 Joules of work on the car when it pulls horizontally.
(b) If the cable pulls at 35.0 degrees above the horizontal:
In this case, the angle between the force and the displacement is 35.0 degrees, so the work done can be calculated as:
Work = Force * Displacement * cos(Ф)
Work = 1350 N * 5000 m * cos(35.0°)
Work = 1350 N * 5000 m * 0.819
Work = 6,308,250 J
The cable does approximately 6,308,250 Joules of work on the car when it pulls at 35.0 degrees above the horizontal.
(c) The work done by gravity on the car is zero because gravity acts vertically downward, perpendicular to the displacement along the horizontal roadway. Therefore, the gravitational force does not contribute to the work done on the car in this scenario.
In both cases (a) and (b), the cable does the same amount of work on the tow truck as on the car since they are connected by the cable. So the work done by the cable on the tow truck would be equal to the values calculated above: 6,750,000 J in case (a) and 6,308,250 J in case (b).
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Can someone buy me
it will make my day
Answer:
how much?
Explanation:
Noticing large amounts of algal growth in her small farm pond, a farmer adds about 20 grass carp to feed on the abundant algae and plants. After several years, the carp grow large, exceeding 20 pounds each in size. Late one summer, the farmer notices that the carp and most of the other fish are dead. The water also smells very bad. Which one of the following is the most likely explanation for the death of these fish?
A. the algae overgrew the pond and produced toxic levels of ozone
B. carbon dioxide released by the carp and algae eventually suffocated the fish in the pond
C. the large carp grew so large that they could not get enough oxygen
D. bacteria feeding on the large volume of carp feces depleted the oxygen
Answer:
D. bacteria feeding on the large volume of carp feces depleted the oxygen
Explanation:
In the context, it is given that in a small farm pond, the owner added 20 grass carp and feed them with the abundant plants and algae that is found on her pond. The carp grew large after many years but one summer the owner found the grass carps along with other fishes were dead.
The most possible explanation for the dead of the fishes in the pond because the bacteria feeds on the carp feces which depletes the dissolved oxygen present in the water. Thus the fishes could not breathe and were finally dead.
Therefore, the correct option is (D).
Explain how water waves are not purely transverse waves
Answer:
Water waves are an example of waves that involve a combination of both longitudinal and transverse motions. As a wave travels through the waver, the particles travel in clockwise circles. The radius of the circles decreases as the depth into the water increases.
Explanation:
The angle θ always has a value in the range of...?
The angle theta (θ) is a geometric angle that can have a value in the range of 0 to 360 degrees or 0 to 2π radians, depending on the unit of measurement used.
The angle theta (θ) is a geometric angle that can have a value in the range of 0 to 360 degrees or 0 to 2π radians, depending on the unit of measurement used. This is because a full circle contains 360 degrees or 2π radians, and any angle can be expressed as a multiple of this full circle.
When measuring angles in degrees, the range of theta is typically given as 0 ≤ θ ≤ 360 degrees. This means that theta can take on any value between 0 degrees and 360 degrees, inclusive.
When measuring angles in radians, the range of theta is typically given as 0 ≤ θ ≤ 2π radians. This means that theta can take on any value between 0 radians and 2π radians, inclusive.
It's worth noting that angles can also have negative values or values greater than 360 degrees or 2π radians, but these are typically considered to be outside the standard range of theta.
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which statement is wrong concerning the two tails of a comet? a. they are ion tail and dust tail. b. they are perpendicular to each other. c. dust tail is more massive than ion tail. d. they all pointing away from the sun.
The statement that is wrong concerning the two tails of a comet is "they are perpendicular to each other." Two tails of a comet can't be perpendicular to each other.
Comets are celestial bodies that circle around the sun, originating from the Kuiper Belt and Oort Cloud. Comets are believed to be made up of ice, rock, and dust, and they can range in size from a few meters to tens of kilometers in diameter. Comets typically consist of two tails: a gas or plasma tail and a dust tail. Two tails of a comet. The two tails of a comet are made up of gas, plasma, and dust. They all point in opposite directions from the comet's nucleus, or core, as it travels through space. The dust tail of a comet is more massive than its ion tail, which is made up of electrically charged particles that are affected by the sun's magnetic field. Both tails of a comet are not perpendicular to each other because they are pointing in opposite directions. A gas tail may be tens or hundreds of thousands of kilometers long. It consists of highly volatile molecules such as water and carbon dioxide that have been energized by the sun's ultraviolet radiation. As they lose energy, the molecules release the energy in the form of light, which is what makes the gas tail visible. A dust tail, on the other hand, consists of tiny grains of rock and dust that have been kicked off the surface of the comet. It's typically much shorter than the gas tail, but it can be much brighter.
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This question is divided into two parts. This is part (a) of the question. A proton accelerates from rest in a uniform electric field of 580 N/C. At some later time, its speed is 1.00 x 106 m/s. (a) Find the magnitude of the acceleration of the proton. (Mass of the proton is 1.67 x 10-27 kg and charge is 1.60 x 10-19 C) (in the following options 10^10 m/s^2 is 1010 m/s2)
Answer:
The acceleration of proton is 5.56 x 10^10 m/s^2 .
Explanation:
initial velocity, u = 0
Electric field, E = 580 N/C
final speed, v = 10^6 m/s
(a) Let the acceleration is a.
According to the Newton's second law
F = m a = q E
where, q is the charge of proton and m is the mass.
\(a= \frac{q E}{m}\\\\a = \frac{1.6\times10^{-19}\times 580}{1.67\times 10^{-27}}\\\\a= 5.56\times 10^{10} m/s^2\)
after a flip in the air, a 64.0-kg gymnast lands and decelerates by pushing straight down on the floor. what is the force she exerts if her deceleration is 6 times the acceleration due to gravity?
The force she exerts if her deceleration 6 times the acceleration due to gravity is: 3840N.
After a flip in the air, a 64.0-kg gymnast lands and decelerates by pushing straight down on the floor. The force she exerts if her deceleration is 6 times the acceleration due to gravity is 3840N. Force is the rate at which work is done or energy is transferred, and it is measured in newtons (N).
Acceleration, which is the change in velocity with time, is a fundamental concept in physics. The acceleration due to gravity is a constant acceleration that all objects experience when they are free-falling. Deacceleration is the act of reducing or slowing down speed, as opposed to acceleration, which is the act of speeding up.
The velocity of an object decelerating is slowing down, which can be caused by various factors, such as friction, a force applied in the opposite direction, or gravity. If an object is slowed down by an external force, the force applied by the object on that external force is the same in magnitude but opposite in direction.
The formula to find force is F = ma, where F is force, m is mass, and a is acceleration. A force of 3840N would be exerted by the gymnast when decelerating, given that the acceleration is six times the acceleration due to gravity.
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50 points!!pls help
A student has designed a car as a system. The student has included the drawing below. The student has said the car would include a GPS, a big engine, and good shocks. Is this a good design that is complete with all needed parts? If yes, your answer is complete. If no, tell me what it is missing.
A skier starts from rest at the top of a 45.0 m hill, coasts down a 30 slope into a valley and continues up to the top of a 40.0 m hill. Both
hill heights are measured from the valley floor. Assume the skier puts no effort into the motion (they simply coast) and there is no friction.
How fast will the skier be moving on the top of the 40.0 m hill?
Round your answer to the nearest hundredth.
The speed at the bottom of the valley is 29.7 m/s. The speed at the top of the second hill is 9.9 m/s. The results are independent of the angle of the hills.
What is speed?Speed of an object can be defined as the total distance covered in a given period of time. It is a scalar quantity because it has only the magnitude and no direction. The SI unit of speed is meter per second (m/s).
Since, there is no frictional force involved we can apply the law of conservation of energy, and the total mechanical energy of a system remains conserved under the action of conservative forces like the gravitational forces.
Total energy = KE + PE
where, KE is Kinetic Energy and PE is Potential Energy
At the top of the hill, KE will be 0 since the skier is at rest, so all the energy is potential energy:
PE = mgh
where,
m is the mass of the skier
g is the acceleration of gravity
h = 45.0 m is the height of the hill
At the bottom, there is only the kinetic energy:
KE = 1/2 mv²
where, v is the speed of the skier at the bottom of the hill
Since the total energy is conserved, then:
KE = PE
1/2 mv² = mgh
v = \(\sqrt{mgh}\)
v = \(\sqrt{2gh\\}\)
v = \(\sqrt{(2)(9.8)(45)}\)
v = 29.7 m/s
The height of the second hill is h' = 40.0 m
Applying the conservation of energy, the kinetic energy at the bottom will be converted to potential energy and remaining kinetic energy for the second hill:
let the speed of the skier at the top of second hill be v', then
1/2 mv² = mgh' + 1/2 mv'²
mgh = mgh' + 1/2 mv'²
v' = \(\sqrt{2g(h-h')}\)
v = \(\sqrt{(2)(9.8)(45-40)}\)
v = 9.8 m/s
We can clearly see in the above results that the results are independent of the angle of the hills.
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Your question is incomplete, most probably the complete question is:
A skier starts from rest at the top of a 45.0-m-high hill, skis down a 30° incline into a valley, and continues up a 40.0-m-high hill. The heights of both hills are measured from the valley floor. Assume that you can neglect friction and the effect of the ski poles. How fast is the skier moving at the bottom of the valley? What is the skier’s speed at the top of the next hill? Do the angles of the hills affect your answers?
What is TRUE about cancer cells?
They are just like normal cells except for the way they function.
They form an encapsulated tumor that keeps them in one area of the body
They do not function appropriately in the tissue or organ they are a part of.
The mutations in cancer cells are caused by environmental factors.
Answer:
they do not function appropriately in the tissue or organ they are a part of.
The statement that is true about cancer cells is They do not function appropriately in the tissue or organ they are a part of. Option C is the correct answer.
Cancer cells differ from normal cells in several ways. One of the key characteristics of cancer cells is that they lose their normal function and behavior within the tissue or organ they originate from. Option C is the correct answer.
Normal cells have specific roles and functions within the body, contributing to the overall health and proper functioning of the tissue or organ they are a part of. In contrast, cancer cells undergo a series of genetic mutations that disrupt their normal function. These mutations can lead to uncontrolled cell growth and division, which is a hallmark of cancer. As a result, cancer cells no longer perform the specialized functions of the tissue or organ they are derived from, and they can interfere with the normal functioning of nearby healthy cells.
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The complete question is, "What is TRUE about cancer cells?
a. They are just like normal cells except for the way they function.
b. They form an encapsulated tumor that keeps them in one area of the body
c. They do not function appropriately in the tissue or organ they are a part of.
d. The mutations in cancer cells are caused by environmental factors."
4. In a object filled with a type of gas, which of the following actions would decrease the pressure
exerted by the gas?
(1 Point)
Decrease the number of gas particles, increase the object's area, and reduce the temperature of the gas
Decrease the number of gas particles, increase the object's area, and increase the temperature of the gas
Increase the number of gas particles, increase the object's area, and reduce the temperature of the gas
Decrease the number of gas particles, decrease the object's area, and decrease the temperature of the gas
Answer:
Decrease the number of gas particles, increase the object's area, and reduce the temperature of the gas
Explanation:
TEMPERATURE:
Decreasing the temperature will slow down the molecules. Hence, less no. of collisions will take place between walls of object and molecules. This will result in decrease of pressure.
Therefore, the pressure of a gas can be decreased by increasing its temperature.
NUMBER OF GAS PARTICLES:
Decreasing the number of particles will result in less no. of collisions, hence decreasing the pressure.
Therefore, the pressure of a gas can be decreased by decreasing its no. of molecules or no. of particles.
AREA OF OBJECT:
The pressure is given by the formula:
\(P = \frac{F}{A}\\\\For constant Force (F):\\P\ \alpha\ \frac{1}{A}\)
where,
A = Area of Object
Therefore, the pressure of a gas can be decreased by increasing area of object.
So, the correct option is:
Decrease the number of gas particles, increase the object's area, and reduce the temperature of the gas