Newton's third law of motion
\(F_{12}=-F_{21}\)Here F_12 is the force due to the first body on the second body.
F_21 is the force due to the second body on the first body.
The negative sign indicates that the direction of force is opposite.
Example: Hitting the wall with your hand.
You are applying force on the wall with your hand and the wall will exert an opposite force on the hand of equal magnitude.
Samir is waiting for a slow reaction to finish. What is the best way to make the reaction go faster?
Question 12 options:
Put it in the fridge where it is cold
Cover it with a blanket so it's dark
Warm it up on the stove
There is nothing you can do to change the speed of the reaction
In general, option c - warming it up on the stove - is often an effective method to increase the reaction rate.
Increasing the temperature of a reaction generally leads to faster reaction rates. This is because higher temperatures provide more thermal energy to the reactant particles, causing them to move faster and collide more frequently. The increased collision frequency and energy lead to more successful collisions and a higher likelihood of effective molecular interactions, which speeds up the reaction. On the other hand, options a and b - putting it in the fridge where it is cold or covering it with a blanket to make it dark - are unlikely to have a significant effect on the reaction rate. While temperature can influence reaction rates, cooling the reaction or making it dark typically reduces the kinetic energy of the particles, resulting in slower reaction rates. Option d - there is nothing you can do to change the speed of the reaction - is not accurate. The reaction rate can be influenced by various factors such as temperature, concentration, catalysts, and surface area, among others. By manipulating these factors, it is often possible to control and change the speed of a reaction. Hence option c, is correct
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can anyone write for me all the equation of linear motion
All the equations of motion are as follows, Displacement (s) equation, Final velocity (v) equation, Average velocity (v_avg) equation, Displacement (s) equation with average velocity, and Displacement (s) equation.
Equations of MotionIn terms of its motion as a function of time, equations of motion define how a physical system behaves. In more detail, the equations of motion define how a physical system behaves as a collection of mathematical functions expressed in terms of dynamic variables.
s = ut + (1/2)at^2v = u + atv_avg = (u + v) / 2s = v_avg * ts = (u + v) / 2 * tv^2 = u^2 + 2asIn conclusion, equations of motion define how a physical system behaves in terms of how its motion changes over time.
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The Hertzsprung-Russell diagram shown is divided into four sections.
C Section 3
n
Luminosity (Lsun)
Cortion A
10%
10⁰
10²
10-2
104
Hertzsprung-Russell Diagram
400 200 100
55
Temperature (x10² K)
Which section of the diagram includes the coolest, brightest stars?
A Section 1
B
Section 2
75
45
●
30
The section of the diagram that includes the coolest, brightest stars is A, Section 1.
How is the Hertzsprung-Russell diagram described?On the Hertzsprung-Russell diagram, the vertical axis represents luminosity, which is the total amount of energy emitted by a star per unit time. The luminosity is measured in units of solar luminosity, which is the amount of energy emitted by the Sun per unit time.
The section that includes the coolest, brightest stars is Section 1. This is because in this section, the stars have a low temperature (around 3,000-4,000 K) and a high luminosity (around 1,000-10,000 times that of the Sun). These stars are called red giants, and they are nearing the end of their lives. As they run out of fuel, their outer layers expand and cool, making them appear red and bright.
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imagine imagining an imagination.
Answer:
We’re imagining imagining imagining an imagination...
Multiple-point charges: Four-point charges are placed as shown in the figure. Q=5.0 μC. Find the net electric field at point P shown in the figure. (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)
It's important to note that without the specific distances provided in the figure, it is not possible to provide the exact numerical value of the net electric field at point P.
To find the net electric field at point P, we need to consider the contributions from each of the four point charges. The electric field from a point charge is given by Coulomb's law:
\(E = k * (Q / r^2)\)
Where:
E is the electric field,
k is the electrostatic constant (\(k = 8.99 * 10^9 N \∙ m^2/C^2\)),
Q is the charge of the point charge, and
r is the distance between the point charge and the point where the electric field is being calculated.
Let's consider each point charge one by one:
1. The charge at the top left:
The electric field at P due to this charge is directed to the right. Its magnitude is given by:
\(E1 = k * (Q / r^2) = 8.99 * 10^9 N \∙ m^2/C^2 * (5.0 * 10^-^6 C) / (0.06 m)^2\)
2. The charge at the top right:
The electric field at P due to this charge is directed to the left. Its magnitude is given by:
\(E2 = k * (Q / r^2) = 8.99 * 10^9 N \∙ m^2/C^2 * (5.0 * 10^-^6 C) / (0.04 m)^2\)
3. The charge at the bottom left:
The electric field at P due to this charge is directed upward. Its magnitude is given by:
\(E3 = k * (Q / r^2) = 8.99 * 10^9 N \∙ m^2/C^2 * (5.0 * 10^-^6 C) / (0.08 m)^2\)
4. The charge at the bottom right:
The electric field at P due to this charge is directed downward. Its magnitude is given by:
\(E4 = k * (Q / r^2) = 8.99 * 10^9 N \∙ m^2/C^2 * (5.0 * 10^-^6 C) / (0.1 m)^2\)
Once we have calculated the electric fields due to each point charge, we can add them vectorially to obtain the net electric field at point P. Since the electric fields have different directions, we need to take into account their signs.
Net electric field at\(P = E1 - E2 + E3 - E4\)
Performing the calculations and taking into account the signs, we can determine the net electric field at point P.
It's important to note that without the specific distances provided in the figure, it is not possible to provide the exact numerical value of the net electric field at point P.
The calculations outlined above allow for the determination of the magnitude and direction of the net electric field, but the specific numerical value depends on the distances between the charges and point P.
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A sound wave has a wavelength of 2M and a frequency of 100 Hz. The speed of the wave is
Answer:
200 meters per second
Explanation:
wave speed = wavelength x frequency
2 meters x 100 hertz = 200 meters per second
Given the functions f(x)=(1/x-3)+1 and g(x) = (1/1+4)+3
Which statement describes the transformation of the graph of function f onto the graph of function g?
O The graph shifts 2 units right and 7 units down.
O The graph shifts 7 units left and 2 units up.
O
e graph shifts 7 units right and 2 units down.
O The graph shifts 2 units left and 7 units up.
The statement that describes the transformation of the graph of function f onto the graph of function g is: The graph shifts 2 units right and 7 units down.
To determine the transformation of the graph of function f onto the graph of function g, we compare the two functions f(x) and g(x) and observe the changes in the equations.
The function f(x) = (1/x - 3) + 1 represents a reciprocal function that is shifted vertically 1 unit up and horizontally 3 units to the right. The reciprocal function is reflected about the line y = x.
The function g(x) = (1/(1 + 4)) + 3 simplifies to g(x) = 4 + 3 = 7, which is a constant function representing a horizontal line at y = 7.
By comparing the equations, we can see that the transformation from f(x) to g(x) involves the following changes:
The term 1/x in f(x) is replaced by the constant 1/(1 + 4) in g(x), resulting in a vertical shift of 7 units up.
The term -3 in f(x) is replaced by 3 in g(x), resulting in a vertical shift of 3 units up.
The +1 in f(x) is replaced by +3 in g(x), resulting in an additional vertical shift of 2 units up.
Therefore, the overall transformation is a shift of 2 units to the right and 7 units down.
Hence, the correct statement is: The graph shifts 2 units right and 7 units down.
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suppose that you want to build a machine to perform simple tasks. why must you understand all about forces to complete your mission?
Answer:
CAUSE YPU WANT TO
Explanation:
Directions: Participate in a workout of your choice. Evaluate your activity by answering the questions below.
For this workout I did squats. Squats may aid in weight loss because they burn calories. Moreover, they reduce the possibility of knee and ankle injuries.
How did the squat exercise make you feel?When performing squats, your legs should feel fatigued. Lower back ache is a sign that you're likely doing the workout wrong. This shows that your lower back muscles are working harder than your glutes and quadriceps since they are taking the load. Pay attention to how you squat.
Squats are possible everywhere?It doesn't matter where it is—a living room, office, stairwell, park, or closet—as long as there are a few feet available. The only thing you need is your body weight.
Is it acceptable to squat without a spotter?In some instances, it is acceptable to squat without a spotter. The environment and resources you have at your disposal, though, are everything. The safest choice is to use a power rack or squat stand with adjustable safety pins, arms, or straps.
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In 2-3 complete sentences, analyze how scientists know dark matter and dark energy exist.
Answer:
It doesn't interact with baryonic matter and it's completely invisible to light and other forms of electromagnetic radiation, making dark matter impossible to detect with current instruments. But scientists are confident it exists because of the gravitational effects it appears to have on galaxies and galaxy clusters.
Explanation:
tính chỉ số ampe kế thay ampe kế bằng vô kế có điện trở rất lớn thì vô kế chỉ bao nhiêu
Answer:
I don't understand it.....
What statement is TRUE about all the substances listed in the data table? A) All the substances conduct electricity. B) All the substances are strong electrolytes. All the substances have high dissociation constants. D) All the substances contain an equal amount of ions in solution. Eliminate
Answer:
A) all substance conduct electricity
A 12 volt power supply is connected
to two 30 Ohm resistors in parallel.
What is the voltage drop across the
resistors?
12 V
30 Ω
30 Ω
[?] volts
24 volts is the voltage drop across each of the resistors in the parallel configuration.
When resistors are connected in parallel, they share the same voltage across them. Therefore, the voltage drop across each resistor in this scenario would be the same.
Given:
Power supply voltage (V) = 12 V
Resistance of each resistor (R) = 30 Ω
Since the resistors are in parallel, the total resistance (R_total) can be calculated using the formula:
1/R_total = 1/R1 + 1/R2
Substituting the values:
1/R_total = 1/30 Ω + 1/30 Ω
1/R_total = 2/30 Ω
R_total = 15 Ω
Now, we can find the current flowing through the resistors (I) using Ohm's Law:
I = V / R_total
I = 12 V / 15 Ω
I = 0.8 A
Since the voltage drop across each resistor is the same, we can find it using Ohm's Law:
V_drop = I * R
V_drop = 0.8 A * 30 Ω
V_drop = 24 V
Therefore, the voltage drop across each of the resistors in the parallel configuration is 24 volts.
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Naming lonic Compounds Practice
Write the name of the ionic compounds below:
1. KCI
2. MgO
3. K₂O
4. AlCl3
5. Cao
6. BaS
7 MẸCh
8. Al2S3
9. NaH
10. SrF₂
11. ZnS
12. Mgl₂
13. RbBr
14. Case
15. Al₂03
16. BaBrz
17. Na N
18. CsCl
19. Ca₂C
20. Mg3P₂
The name of the ionic compounds are
KCl - Potassium chlorideMgO - Magnesium oxideK₂O - Potassium oxideAlCl₃ - Aluminium chlorideCaO - Calcium oxideBaS - Barium sulfideAl₂S₃ - Aluminum sulfideNaH - Sodium hydrideSrF₂ - Strontium fluorideZnS - Zinc sulfideMgI₂ - Magnesium iodideRbBr - Rubidium bromideCaSe - Calcium selenideAl₂0₃ - Aluminum OxideBaBr₂ - Barium bromideNaN - Sodium azideCsCl - Cesium chlorideCa₂C - Calcium carbideMg₃P₂ - Magnesium phosphideIonic compounds that has only two types of elements are named by mentioning cation first followed by the anion name.
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Calculate Time
d
12. A vehicle drives a distance of 26000 m at a speed of 65m/s, calculate the time taken for
this journey.
13. A train travels at a speed of 16 m/s and travel a distance of 3200 m, calculate the time it
takes the train to complete this journey.
urs 14. Calculate the time it takes to travel a distance of 672 km at a speed of 96 km/h.
15. A beetle travels at a speed of 0.09 m/s, it travels a distance of 1.08 m before it is caught
in a jar. Calculate the time taken for the beetle to run.
16. Carlisle is a distance of 35 miles away from Lockerbie. If I travelled at a constant speed
5147
deudate the time takon for this journey
12. The time taken for the journey is 400 s
13. The time taken for the train is 200 s
14. The time taken is 7 h
15. The time taken for the beetle is 12 s
16. The time taken for the journey is 0.0068 h
How do i determine the time taken?The time taken in each case as given by the question can be obtain as follow:
12. The time taken for the journey
Distance traveled = 26000 mSpeed = 65 m/s Time taken =?Time taken = Distance / Speed
Time taken = 26000 / 65
Time taken = 400 s
13. The time taken for the train
Distance traveled = 3200 mSpeed = 16 m/s Time taken =?Time taken = Distance / Speed
Time taken = 3200 / 16
Time taken = 200 s
14. The time taken to travel
Distance traveled = 672 kmSpeed = 96 Km/h Time taken =?Time taken = Distance / Speed
Time taken = 672 / 96
Time taken = 7 h
15. The time taken for the beetle
Distance traveled = 1.08 mSpeed = 0.09 m/s Time taken =?Time taken = Distance / Speed
Time taken = 1.08 / 0.09
Time taken = 12 s
16. The time taken for the journey
Distance traveled = 35 milesSpeed = 5147 mile per hourTime taken =?Time taken = Distance / Speed
Time taken = 35 / 5147
Time taken = 0.0068 h
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A small, 300 gg cart is moving at 1.80 m/sm/s on a frictionless track when it collides with a larger, 5.00 kgkg cart at rest. After the collision, the small cart recoils at 0.810 m/sm/s . Part A What is the speed of the large cart after the collision
The velocity of the large cart after the collision is approximately 0.0486 m/s in the opposite direction of its initial motion.
We can use the principle of conservation of momentum to find the speed of the large cart after the collision. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.
The momentum (p) of an object is calculated by multiplying its mass (m) by its velocity (v). Therefore, the momentum of the small cart before the collision is:
p_small_before = (mass_small) * (velocity_small) = (0.300 kg) * (1.80 m/s) = 0.540 kg·m/s.
Since the large cart is at rest before the collision, its initial momentum is zero:
p_large_before = 0 kg·m/s.
After the collision, the small cart bounces back at a speed of 0.810 m/s. According to the law of conservation of momentum, the total momentum after the collision should equal the total momentum before the collision. Therefore, the momentum of the small cart after the collision is:
p_small_after = (mass_small) * (velocity_small_after) = (0.300 kg) * (-0.810 m/s) = -0.243 kg·m/s.
The momentum of the large cart after the collision is labeled p_large_after. Since the initial momentum of the large cart is zero and the momentum after the collision is determined by the momentum of the small cart, we can write:
p_large_after = -0.243 kg·m/s.
To find the speed of the large cart after the collision, we divide the momentum by its mass:
velocity_large_after = p_large_after / (mass_large) = (-0.243 kg·m/s) / (5.00 kg) = -0.0486 m/s.
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what is the 'Water Column"
Answer:a vertical expanse of water stretching between the surface and the floor of a body of water
Explanation:
Oxygen is obtained through various methods. Which of the following methods involves a chemical
change?
1. Electrolysis of water
2. Distillation of liquid air
3. Heating of KCIO,
02
1 and 2
1 and 3
Answer:
1
Explanation:
Electrolysis is the passing of an current through a conducting solution, when the occurs, a chemical reaction takes place.
Heating a chemical will always cause a chemical reaction, which is why 3 is also correct
Some information as to why 2 is NOT correct.
2 is NOT a chemical reaction, but rather a process of physical separation. It uses selective boiling and condensation, but is not considered a chemical reaction.
as with 3, heating is not considered a chemical reaction, but rather a physical temperature change. This is always what it is considered to be (e.g boiling water is a physical temperature change, not a chemical reaction)
Hope this helps.
Hope this helps.
HI PLEASE HELP ON QUESTION ASAP USING AVERAGE (MEAN) TO ANSWER QUESTION! IF UR ANSWER AND EXPLAINATION IS CORRECT ILL RATE YOU FIVE STARS, A THANKS AND MAYBE EVEN BRAINLIEST. PLEASE MAKE SURE YOU ANSWER MY QUESTION USING AVERAGES.
1) a meal for 6 cost £12 per person. as it is one of the diners birthday , the other 5 decided to pay for his meal. how much do each of the five friends need to pay?
Each of the five friends needs to pay £12 to cover the cost of their own meals and contribute towards the birthday person's meal. Using mean allows us to distribute the cost equally among the friends, ensuring a fair division of expenses for the meal.
To determine how much each of the five friends needs to pay, we can use the concept of averages (mean) and divide the total cost by the number of people paying.
In this scenario, the total cost of the meal for 6 people is £12 per person. Since the other 5 friends have decided to pay for the birthday person's meal, they will collectively cover the cost of their own meals plus the birthday person's meal.
To calculate the total cost covered by the five friends, we can subtract the cost of one person's meal (since the birthday person's meal is being paid by the group) from the total cost. The cost of one person's meal is £12.
Total cost covered by the five friends = Total cost - Cost of one person's meal
= (£12 x 6) - £12
= £72 - £12
= £60
Now, to find out how much each of the five friends needs to pay, we divide the total cost covered by the five friends (£60) by the number of friends (5).
Amount each friend needs to pay = Total cost covered by the five friends / Number of friends
= £60 / 5
= £12
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If you cut a apple and leave it in the open air and it turns brown what kind of chemical change is that
Answer:
Oxidation
Explanation:
The browning of the apple after you cut it undergoes a natural chemical change called oxidation, wherein the apple's enzymes react with the oxygen in the environment.
Which symbol in a chemical equation separates the reactants from the products?
Answer:
the arrow symbol ⇒ in irreversible reactions and doble arrow symbol in reversible reactios⇔
Explanation:
i hope this will help you
At what angle should the roadway on a curve with a 50-m radius be banked to allow cars to negotiate the curve at 12 m/s even if the roadway is icy (and the frictional force is zero)
Answer:
The value is \(\theta = 16.38^o\)
Explanation:
From the question we are told that
The radius is \(r = 50 \ m\)
The velocity is \(v = 12 \ m/s\)
Generally the angle is mathematically represented as
\(\theta = tan^{-1} [\frac{v^2}{ gr} ]\)
=> \(\theta = tan^{-1} [\frac{12^2}{ 9.8 * 50 } ]\)
=> \(\theta = tan^{-1} [ 0.2939 ]\)
=> \(\theta = 16.38^o\)
allung d Uall, Wily
In which condition is mirage seen ? Why is light dispersed ?
Answer:
Mirage is a phenomenon which can be seen when the surface air gets heated up and it becomes lighter. Lighter air moves up in the atmoshphere.
Explanation:
When the lighter air from cooler areas to warmer areas are refracted and they bent upwards.and it dispers
,
Which of the following shows evidence of the carbon cycle?
a. A fox getting its energy from a mouse and a mouse getting its energy
from the grass.
b. Plants growing in a greenhouse.
c. Water falling as rain then evaporating back into the atmosphere.
d. A river flowing to the ocean.
A fox getting its energy from a mouse and a mouse getting its energy from the grass shows evidence of the carbon cycle
What is the carbon cycle?The carbon cycle is a necessary component within the global interchange between living species and the environment.
Through photosynthesis, plants absorb carbon dioxide from the atmosphere and convert it into vitalizing organic matter for consumption by animals; these organisms expend the energy obtained and consequently expel carbon dioxide back up into the air via respiration.
Moreover, when animals meet their demise and decompose, the carbon in their bodies is redeposited into Earth's soil only to eventually be delivered once again to the atmosphere through erosive activities or those generated from volcanoes.
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if i throw up an object up at 31 m/s, how long will it take to get to its highest point
Answer:
Explanation:
vf=vi+at
vf=31 m/s
vi=0 m/s
a=g=9.8 m/s2
t=?
vf-vi=at
vf-vi/a=t
t=vf-vi/a
t=31 m/s-0/9.8
t=3.16 s
if a car begins at rest and accelerates to 60 mph with an average acceleration of 13.5 m/her/sec. how much time will it take to get to 60 mph?
Answer:
Explanation:
First, we need to convert the velocity to meters per second:
60 mph = 88.5 ft/s = 26.82 m/s
Now we can use the formula:
v = at
where v is the final velocity, a is the acceleration, and t is the time.
Rearranging this formula, we get:
t = v/a
Substituting the values, we get:
t = 26.82 m/s / 13.5 m/s^2 = 1.987 seconds (rounded to three decimal places)
Therefore, it will take approximately 1.987 seconds to reach 60 mph with an average acceleration of 13.5 m/her/sec.
The vehicle will hit 60 mph in 7152 seconds (or about 1 hour and 59 minutes) with an average acceleration of 13.5 m/hr/sec.
What is acceleration ?The definition of acceleration is. The pace at which velocity changes with regard to time. Because it has both amount and direction, acceleration is a vector variable. It is also the second derivative of location in relation to time, or the first derivative of motion in relation to time.
We can begin by converting the final velocity to meters per second (m/s) as the initial acceleration is given in m/hr/sec.
60 mph = 26.8224 m/s (1 mile = 1.60934 km, 1 hour = 3600 seconds)
Now, we can use the formula:
v = u + at
Where,
v = final velocity = 26.8224 m/s
u = initial velocity = 0 m/s (car starts at rest)
a = acceleration = 13.5 m/hr/sec = 0.00375 m/s^2 (convert from m/hr/sec to m/s^2)
t = time taken to reach the final velocity
Substituting the values, we get:
26.8224 = 0 + (0.00375)t
t = 26.8224 / 0.00375
t ≈ 7152 seconds
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The main technical challenge faced by skiers is _________.
maintaining balance
turning
maintaining control of direction and speed
deciding what to wear
Answer:
1
Explanation:
Answer:
maintaing control of direction and speed
Explanation:
took a test and got it right
QUESTION #1:if there were no gravity a ball thrown upward at an angle would follow a straight-line path. Due to gravity, however, at the end of 1 s it is?a.) 5 m below the straight lineb.) 10 m below the straight linec.) 15 m below the straight lined.) 20 m below the straight line QUESTION #2:if there were no gravity a cannonball fired upward at an angle of 45 degrees would follow a straight-line path. Due to gravity, however, at the end of 3 s it is?a.) 5 m below the straight lineb.) 10 m below the straight linec.) 20 m below the straight lined.) more than 20 m below the straight line
Q1.
The acceleration of the gravity is 9.81 meters per second per second. Assuming is falling from rest then it will have fallen from the straig light approimately:
\(\begin{gathered} y=-\frac{1}{2}gt^2 \\ y=-\frac{1}{2}(9.81)(1)^2 \\ y=-4.905 \end{gathered}\)Therefore the answer is a.
Q2.
In this case the time is 3 s. then we have:
\(\begin{gathered} y=-\frac{1}{2}(9.81)(3)^2 \\ y=-44.145 \end{gathered}\)Therefore the answer is d.
In the arrangement described in Sample Problem B, how much would the water’s internal energy increase if the mass fell 6.69 m?
If a mass fell into water, the water's internal energy would increase due to the conversion of the kinetic energy of the falling mass into thermal energy.
How to explain the informationWhen the mass hits the water, it will experience a force from the water, and this force will cause the mass to decelerate and eventually come to a stop. During this process, the kinetic energy of the mass is converted into thermal energy of the water, which increases the water's internal energy.
The amount by which the water's internal energy increases will depend on several factors, including the mass of the falling object, its velocity, and the properties of the water, such as its specific heat capacity and temperature. Additionally, the temperature of the water may rise due to the energy transfer from the falling object, which would further increase its internal energy.
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Ang larong Latin at Sisiw ay________________________.
larong pinoy
Explanation:
ito ay larong Pinoy