. a particle has a kinetic energy equal three-quarters its rest mass energy. what is the speed of this particle?
Answers
A particle has a kinetic energy equal three-quarters its rest mass energy, the speed of this particle is 0.821c
KE = (γ - 1)*mo*c^2 = 0.75*mo*c^2
γ = 1.75 = [1 – (u/c)^2]-1/2
Speed (u) = c*sqrt[1 – (1/γ)^2] = c*sqrt(0.6735) = 0.821*c
Kinetic energy is the power a thing has as a result of motion.
Applying a force is necessary if we want to accelerate an object. We must exert effort in order to apply a force. Once the job is finished, energy is transferred to the item, which then moves at a new, constant speed. Kinetic energy is what is conveyed, and it is dependent on the mass and speed attained.
Kinetic energy can be transmitted between objects and changed into different types of energy. A flying squirrel might run into a chipmunk that is standing still, for instance. After the collision, a portion of the squirrel's initial kinetic energy may have been transmitted to the chipmunk or changed into another type of energy.
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Related Questions
All systems move from high pressure to low pressure. (T or F)
Answers
Answer:
pun
Explanation:
in three sentences, explain why I would die with a plastic bag over my head, including the vocabulary oxygen, carbon dioxide, and cellular respiration
Answers
Answer:
easy how you would die from a plastic bag being over your head is by sufacation the oxegen you breath with soon become carbon dioxide and kill you is it gets to your cellular reperation atory
Explanation:
Please select the word from the list that best fits the definition
Creates an image that is reflected through a focal point
A) Plane mirror
B) concave mirror
C) diffuse reflection
D) Specular reflection
Pls help :'(
Answers
Answer: the answer is B) Concave mirror
Explanation:
Two projectiles are fired at equal speeds but different angles. One is fired at angle of 30 degrees and the other at 60 degrees. The projectile to hit the ground first will be the one fired at (neglect air resistance) ____.
Answers
Answer:
14 degrees
Explanation:
because you can divide all and find the angle to find the answer
hope it's help ty make me brainless pls
acontainer is filled whith mercury to alevel of 10m whit water to alevel of 8m and whit oil to alevel of 5m the densities oil ,water and mercury are 0.8g/cm³,1g/cm³ and 13.6g/cm³ calculate the total pressure exerted by the liquids at the base
Answers
Answer:
1450.4 KN\(m^{2}\)
Explanation:
Pressure = ρhg
where: ρ is the density of the liquid, h is the height and g the force of gravity.
Total pressure exerted by the liquids at the base = Pressure of oil + Pressure of water + Pressure of mercury
So that,
i. Pressure of oil = ρhg
(ρ = 0.8 g/cm³ = 800 kg/m³)
= 800 x 5 x 9.8
= 39200
Pressure of oil = 39200 N\(m^{2}\)
ii. Pressure of water = ρhg
(ρ = 1 g/cm³ = 1000 kg/m³)
= 1000 x 8 x 9.8
= 78400
Pressure of water = 78400 N\(m^{2}\)
ii. Pressure of mercury = ρhg
(ρ = 13.6 g/cm³ = 13600 kg/m³)
= 13600 x 10 x 9.8
= 1332800
Pressure of mercury = 1332800 N\(m^{2}\)
So that,
Total pressure exerted by the liquids at the base = 39200 + 78400 + 1332800
= 1450400
= 1450.4 KN\(m^{2}\)
Total pressure exerted by the liquids at the base is 1450.4 KN\(m^{2}\).
Part 1: Pesticide Spraying Case Study Duection of prevaring winds ABB Mied fores con lerous and deciduous Are White pines stand I An insect pest has attacked about 20 percent of the trees in a pure stand of white pine. In an effort to reduce his economic loss, the owner has his forest crop sprayed each spring with a relatively new pesticide. The species that he is trying to eliminate is normally preyed upon by other insects, a parasite, and song birds from nearby woods. To the south of his property is a bird sanctuary for rare species of waterfowl and the carnivorous osprey. He has been assured that natural barriers and the wind direction will keep the pesticide out of the wildlife area. The three areas shown on the diagram (Figure 1) were carefully studied over a five-year period by researchers from a nearby university, Insect populations were estimated, fish and bird populations studied, soil samples collected, and pesticide concentrations measured in an effort to determine the overall environmental influence of this new pesticide. The results are recorded in Table 1.
Answers
The owner sprays pesticide on white pine to control insects.
What was the environmental impact of a new pesticide?The owner of a pure stand of white pine forest crop, which has been attacked by an insect pest, sprays his crop each spring with a new pesticide to reduce economic losses. The species he is trying to eliminate is normally preyed upon by other insects, a parasite, and song birds from nearby woods. The forest stand is located next to a bird sanctuary for rare species of waterfowl and osprey. Researchers from a nearby university conducted a five-year study on the environmental impact of the pesticide, measuring insect populations, fish and bird populations, soil samples, and pesticide concentrations in three carefully studied areas shown on the diagram (Figure 1) to determine the overall environmental influence of the pesticide. The owner has been assured that natural barriers and wind direction will prevent the pesticide from reaching the wildlife area.
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The volume of 5 grams of a substance is 2cm^2. Calculate the density. What might this substance be?
Answers
ρ=2.5⋅g⋅cm3............
Explanation:
ρ=Mass/Volume=5⋅g2⋅cm3,
and thus typically it has the units g⋅mL−1 or g⋅cm−3.
Here, mass=5⋅g, and volume=2⋅m3.
Their quotient is the density as shown. And this could be any solid material (generally solids are denser than liquids). You will have to look up tables of densities for common materials.
For the following questions, please provide a complete step by step solution. You do notneed interaction, but you are required force diagrams.
Answers
Tennsion 1= horizontal = 484.94 N
Tension 2 = slanted string = 560 N
Explanation
Step 1
Free body diagram
Newton's first law says that if the net force on an object is zero, like in this case the mass is in rest,then that object will have zero acceleration
so
Step 1
set the equations:
a) for x-axis
\(\begin{gathered} \sum ^{}_{}F_x=0 \\ so \\ T_{2x}-T_1=0 \\ T_2\cos 30-T_1=0\rightarrow equation(1) \end{gathered}\)b) for y -axis
\(\begin{gathered} \sum ^{}_{}F_y=0 \\ so \\ T_{2y}-w=0 \\ T_2\sin 30-280N=0\rightarrow equation(2) \end{gathered}\)Step 2
Solve the equations
\(\begin{gathered} T_2\cos 30-T_1=0\rightarrow equation(1) \\ T_2\sin 30-280N=0\rightarrow equation(2) \end{gathered}\)a) solve for T2in equation (2)
\(\begin{gathered} T_2\sin 30-280N=0\rightarrow equation(2 \\ \text{add 280 N in both sides} \\ T_2\sin 30-280N+280N=0+280\text{ N} \\ T_2\sin 30=280\text{ N} \\ \text{divide both sides by sin 30} \\ \frac{T_2\sin30}{\sin30}=\frac{280\text{ N}}{\sin30} \\ T_2=560\text{ N} \end{gathered}\)b) replace the T2 value in equation (1) to find T1
\(\begin{gathered} T_2\cos 30-T_1=0\rightarrow equation(1) \\ 560\cos 30-T_1=0\rightarrow equation(1) \\ 484.97-T_1=0 \\ 484.97=T_1 \end{gathered}\)therefore
Tennsion 1= horizontal = 484.94 N
Tension 2 = slanted string = 560 N
I hope this helps you
A 10- kilogram box is at static equilibrium and the downward pull of gravity acting on the box is 98 Newton's what is the minimum force that would be required to just pick up the box ?
Answers
Answer:
Explanation:
Now
Look at it this way. This box is in equilibrium... Meaning forces around balanced out.
Now...
The Earth's pull on it is 98N
What Minimum external forces is needed to pick this up....
Now... The Minimum Force is 98N
Why?
Since This Box is under the influence of gravity...
Gravity is acting as a resistance
If you apply a force less than 98N... Let's say 50N on this box... It won't budge because your applied force is less than the resisting force on it(98N).
So We need a force ≥98. So the least force is 98N. Nothing below this will move the Box
Answer 98N.
Answer:
See image
Explanation:
Plato
A 65 kg speed skater is racing around a circular track. The track has a radius of 20 m. It
takes the skater 10 seconds to complete one lap. Calculate the skater’s acceleration
Answers
The acceleration of the skater is: 1.97 m/s²
What is acceleration?Any procedure where the velocity varies is referred to as acceleration. There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.
Time, (t) = 10 sec
Frequency (F) = 1/t = 0.1 Hz.
Velocity, (V) = r × ω
V = 10 x (2 Π/10)
V = 6.28 m/s
Now, Centripetal acceleration,
a = v²/r
or, a = (6.28)²/20
or, a = 1.97 m/s².
Now, the acceleration of the skater is: 1.97 m/s².
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A 60-Ohm resistor is connected in parallel with a 20-Ohm resistor. What is the equivalent resistance of the combination?
Answers
The equivalent resistance of a 60-Ohm resistor connected in parallel with a 20-Ohm resistor is 13.3 Ohms.
To determine the equivalent resistance of a combination of resistors connected in parallel, the following formula can be used:
Req=1/(1/R1+1/R2+...+1/Rn)
where Req is the equivalent resistance and R1, R2, ..., Rn are the resistances of the individual resistors connected in parallel.
Given that a 60-Ohm resistor is connected in parallel with a 20-Ohm resistor.Using the above formula we have;
Req=1/(1/60 + 1/20)
Calculate the individual reciprocals first.
1/60 = 0.01671/20 = 0.05
Substitute into the formula;Req = 1/(0.0167 + 0.05)Req = 13.3 ohms
Therefore, the equivalent resistance of the combination is 13.3 Ohms.
In summary, the equivalent resistance of a 60-Ohm resistor connected in parallel with a 20-Ohm resistor is 13.3 Ohms. The formula used in solving for the equivalent resistance is Req=1/(1/R1+1/R2+...+1/Rn).
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I NEED THIS ASAP
Give me 3 Facts about motion
Write them in complete sentences
Answers
Answer:
In physics, motion is the phenomenon in which an object changes its position over time.
There are 3 laws of motion also known as Newton's laws of motion.
The 3 laws are the law of inertia, law of momentum and 3rd law of motion.
Consider a velocity field where the x and y components of velocity are, respectively,
given by = x [x!+ y!]⁄ and = y [x!+ y!]⁄ , where is a constant. Obtain the
equations of the streamlines.
Answers
The streamlines equations are \(x^2 - y^2 = c_1\) and \(xy = c_2\), where \(c_1\) and \(c_2\) are constants.
The velocity field is given by,
\(V_x = x (x^2 + y^2)^-^1^/^2\)
\(V_y = y (x^2+ y^2)^-^1^/^2\)
Now, we know that the tangent to a streamline is always parallel to the velocity vector. Hence, for the streamline equations, we must have
\(dx/dy = V_x/V_y\)
Therefore,\((x/y) = V_x/V_y = x/y\)
⇒ \(x^2 - y^2 = c_1\)
or, \((x+y)(x-y) = c_1\)
Hence, the equation of the streamlines are given by \(x^2 - y^2 = c_1\)
Now, for the other streamline equation, let's differentiate both sides of \(V_x\)= constant along the streamline:
\(dx/ds = constant/y\)
And differentiate both sides of \(V_y\) = constant along the streamline:
\(dy/ds = constant/x\)
Multiplying both equations, we get
\(xdx/ds = ydy/ds\)
or,\(xdx = ydy\)
Integrating, we get
\(x^2/2 = y^2/2 + c_2\)
or,\(xy = c_2\)
Thus, the equations of the streamlines are \(x^2 - y^2 = c_1\) and \(xy = c_2\)
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The recommendations state that "members of the general public should not be exposed on a continuous basis to___________ electric field strengths exceeding 5 kV/m," or to magnetic fields exceeding 0.1 mT (1 gauss or 1,000 mG).
Answers
Answer:
electric field must not exceed 5000 V / m ( 5 kV/m)
Explanation:
All electrical equipment produces electric and magnetic fields that must be within the range recommended by WHO, the upper limit for the sum of all fields is
The electric field must not exceed 5000 V / m
to get an idea of the intensity produced by one of the devices that has the largest electric field in the radio with 180 V / m
Answer
what is science? Illustrate Ur views?
Answers
Answer:
Science is
Explanation:
he intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
A policeman kicks in a door with a force of 4500 N. What force does the door apply to the policeman’s leg?
Answers
Answer:
-4500 N
Source: Brainly
The police officer must be angry 0_0
A gas has an initial volume of 24.6 L at a pressure of 1.90 atm and a temperature of 335 K. The pressure of the gas increases to 3.50 atm, and the volume of the gas increases to 31.3 L. What is the final temperature of the gas? 143 K 231 K 485 K 785 K
Answers
Answer:
the final temperature of the gas is 785.18 K
Explanation:
The computation of the final temperature of the gas is shown below:
Here we apply the gas law
= PV ÷ T
Given that
P1 = 1.9 atm
V1 = 24.6 L
T1 = 335 K
P2 = 3.5 atm
V2 = 31.3 L
T2 = ?
Now
P1V1 ÷ T1 = P2V2 ÷ T2
(1.9 × 24.6) ÷ 335 = (3.5 × 31.3)/T2
T2 = 785.18 K
hence, the final temperature of the gas is 785.18 K
Answer: D
Explanation: edge
A soccer player pumps air into a soccer ball until no more air can be pushed inside. Describe the air inside the soccer ball compared to the air outside the ball. (Use the word "particle" in your explanation.)
Answers
Answer:
the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.
Explanation:
This exercise asks to describe the inflation situation of a spherical fultball.
Initially the balloon is deflated, therefore the internal pressure is equal to the pressure of the air outside, atmospheric pressure, when it begins to inflate the balloon with a pump this creates a pressure in the inlet valve and as it is greater than the pressure inside, the air enters it, this is repeated in each filling cycle, manual pump.
When the ball is full we have two forces, the one created by the external walls and the one aired by the pressure of the pump, these forces are directed towards the inside, but the air molecules exert a pressure towards the outside, which translates into a force. When these two forces are equal, the pump is no longer able to continue introducing air into the balloon.
Consequently the filling stops when the pressure of the pump equals the pressure of the interior air plus the pressure of the walls.
the maximum force that a grocery bag can withstand without ripping is 250 n. suppose that the bag is filled with 20 kg of groceries, and lifted with an acceleration of 5.0 m/s2. do the groceries stay in the bag? justify your answer with calculations.
Answers
Yes, the groceries stay in the bag
What is newton's second law?
Newton's Second Law of Motion says that when a force acts on a mass, the mass will speed up (object). This law of motion can be seen at work when you ride your bike. The mass is your bike. The force is your leg muscles pushing on the pedals of your bike.
We calculate the force that is exerted on the bag using Newton's second law, which states that,
F= ma
m is the mass of the object in kilograms
a is the acceleration of the object in meters per second squared. And so, we got:
F= 20kg X 5 m^2
= 100 N
So, a force of 100 newtons is exerted on the bag. Since that is less than the required 250 newtons needed to rip the bag, then the bag doesn't rip, and so the groceries stay in the bag, due to the normal force exerted on them by the bag.
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A ball is thrown horizontally from the top of a building 53.5 m high. the ball strikes the ground at a point 49.7 m from the base of the building. the acceleration of gravity is 9.8 m/s 2 . find the time the ball is in motion.
Answers
Answer: who ever thrown that ball, got an arm.
Explanation:
Three charges are placed as shown below. Determine the magnitude and direction of the net electrostatic force on charge q1. As part of the solution, include a force diagram.
d1= 1.5m
d2= 3.0m
q1=2.0uC
q2=-3.5uC
q3=5uC
Answers
1.8 x 10-3 N to the left is the strength and guidance of the net electrostatic force on q1.
Where may one find electrostatic force?The size of each charge & the separation between them determine how much electrostatic force there will be. When two charges of the same type are brought together, whether positive or Two charges positioned apart are subject to the electrostatic force., they repel one another.
What is electrostatic force, and what does it look like?The mathematical formula for the electrostatic attraction between two objects was initially published by a Frenchman named Charles Coulomb. The force between the charged points can be calculated using Coulomb's law. Its formula is F=k|q1q2|r2, where q1 as well as q2 correspond to two point charges that are separated from one another by r, and where k=8.99109Nm2/C2.
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Cold air is more dense than hot air. When I filled a 9 centimeter diameter balloon with cold air the mass was 1 gram and when I measured the mass of the same size balloon with hot air it was 0.5 grams. When molecules are cooled they move closer together and when they are heated up they move farther apart. Because of this more molecules can fit into a balloon when the air going in is cold than when the air going in is warm. (Please explain this to me)
Answers
The measurement of how far the particles are pushed from their _______________ is called amplification.
Answers
Amplification is the term used to describe how far the particles are pushed from their initial position.
Is it a measurement of how closely or widely spaced away the particles are in a given area?How closely molecules are packed together is determined by density. Because air is a gas, its molecules may either pack closely or spread widely. Higher up, less air is pressing down from above, and gravity is less away from the center of the Earth.
Sound is it longitudinal?Longitudinal waves are what makeup sound. Compressions and rarefactions are also present in longitudinal waves when they pass through any given material. When particles travel in close proximity to one another, compression occurs, generating areas of intense pressure.
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A vehicle accelerates to 17.36 m/s after being stopped at a red light. The vehicle travels 24.99 m while accelerating from the intersection. How fast was its acceleration?
Answers
So, the vehicle's acceleration approximately 6.03 m/s².
IntroductionHi ! I will help you to solve a problem about "acceleration in a straight line movement". When an object experiences an acceleration, the object will experience a change in the value of the velocity in a certain time interval. When experiencing a change in speed, of course, objects will move. This movement will be written as "s" (shift or displacement).
Formula UsedThe formula that you can use to solve this question is:
\( \boxed{\sf{\bold{(v_t)^2= (v_0)^2 + 2 \times a \times s}}} \)
With the following condition :
\(\sf{v_t}\) = final velocity of an object (m/s)\(\sf{v_0}\) = initial velocity of an object (m/s)a = acceleration that happen (m/s²)s = the shift or distance of the object (m)SolutionWe know that :
\(\sf{v_t}\) = final velocity of an object = 17.36 m/s\(\sf{v_0}\) = initial velocity of an object = 0 m/s >> the vehicle initially stopped at the intersection.s = the shift or distance of the object = 24.99 mWhat was asked ?
a = acceleration that happen = ... m/s²Step by step :
\( \sf{(v_t)^2= (v_0)^2 + 2 \times a \times s} \)
\( \sf{(17.36)^2= (0)^2 + 2 \times a \times 24.99} \)
\( \sf{301.37 \approx 49.98 \times a} \)
\( \sf{a \approx \frac{301.37}{49.98}} \)
\( \boxed{\sf{a \approx 6.03 \: m/s^2}} \)
ConclusionSo, the vehicle's acceleration approximately 6.03 m/s².
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mercury is a liquid or not
Answers
Why can a homeowner make a betles argument for compensation tor nowe pollufion if a local arport was built affer he moved in than if it was already there when he moved in? Would it matter whether he know if was gong io be bult?
Answers
The nuisance doctrine is a legal principle that says someone who moves into a place knowing there is a nuisance there cannot later complain about the nuisance and demand compensation for it.
When a homeowner lives close to an airport, it is widely accepted that homeowner should have been aware of the potential noise and other disruptions connected with living close to an airport if the airport was already operational when the homeowner moved in. Such circumstances may make it more difficult for a homeowner to successfully file a claim for compensation based on noise pollution or other airport-related problems.
A stronger case might be made for compensation based on increased noise pollution and other negative effects caused by the airport if a homeowner moved into the neighbourhood before the airport was established and had no knowledge of or reasonable expectation of its construction. This is due to the fact that instead of "coming to the nuisance," they encountered a change in their surroundings after already settling down.
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How do you find the component form of the vector V when given two points in a graph?
Answers
The component form of the vector V when given two points in a graph is by getting the horizontal displacement between the initial and terminal points, and the vertical displacement between the initial and terminal points.
What is a Graph?This is referred to the pictorial representation of data or variables in an organized manner.
The component form of a vector →v is written as →v=⟨vx,vy⟩
v → = ⟨ v x , v y ⟩ , where vx represents the horizontal displacement between the initial and terminal points, and vy represents the vertical displacement between the initial and terminal points.
On the graph, the points are located which represents the component form of the vector V thereby making it the most appropriate choice.
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How can you calculate the mechanical advantage a simple machine provides?
•divide the output force by the output displacement
•divide the output displacement by the input displacement
•Simple machines do not provide a mechanical advantage.
•divide the output force by the input force
Answers
Answer: divide the output force by the input force
Explanation: your welcome
The mechanical advantage which a simple machine provides can be calculated by dividing the output displacement by the input displacement. Thus, the correct option is B.
What is Mechanical advantage?The mechanical advantage of a simple machine can be defined as the ratio of output force applied on the object to input force. Mechanical advantage is also the ratio of load overcame by a simple machine to the effort which is applied by that machine. The formula for mechanical advantage of a simple machine is given as:
M.A. = output force / input force
M.A. = Load / effort
Thus, the mechanical advantage of a simple machine depends both on the output force of the simple machine and the input force of the machine.
Therefore, the correct option is B.
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the normal boiling point of liquid w is lower than that of x, which is lower than that of y. which of the following is the correct order of increasing vapor pressure of the three liquids at stp?'
Answers
Increasing vapor pressure of the three liquids at stp Z, Y, X.
The pressure that a vapour exerts on its condensed phases (solid or liquid) in a closed system at a specific temperature is referred to as the equilibrium vapour pressure (or vapour pressure in English-speaking nations other than the US; see spelling variations). An indicator of a liquid's evaporation rate is the equilibrium vapour pressure. It has to do with how easily liquid-borne particles tend to elude detection (or a solid). Volatile is a term used to describe a chemical that, at room temperature, has a high vapour pressure. Vapor pressure is the force that a vapour cloud exerts over a liquid surface. The kinetic energy of a liquid's molecules increases along with the temperature.
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A body moves in an x-y plane with velocity vm/s. The components of v are vx = 5m/s and vy = 7m/s along x and y-axes respectively. What is the magnitude and direction of the velocity?
Answers
The magnitude and direction of the velocity will be 8.60 m/sec and 54.4°.
What is velocity?The change of displacement with respect to time is defined as the velocity. velocity is a vector quantity. it is a time-based component.
Velocity at any angle is resolved to get its component of x and y-direction.
Given data;
\(\rm v_x= 5 \ m/sec \\\\ v_y=7 \ m/sec\)
The magnitude of the resultant velocity is;
\(\rm v_{net}=\sqrt{v_x^2+v_y^2}\\\\ \rm v_{net}=\sqrt{5 ^2+7^2 } \\\\ v_{net}=\sqrt{74} \\\\ v_{net}= 8.60 \ m/sec\)
The direction of the velocity is;
\(\rm tan \theta = \frac{v_y}{v_x} \\\\ \theta = tan^{-1}(\frac{7}{5}) \\\\ \theta =54.4^0\)
Hence the magnitude and direction of the velocity will be 8.60 m/sec and 54.4°.
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