1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Basile [38]
3 years ago
11

A proton is moving at 105 m/s at a point where the potential is 10 V. Later, it is at a place where the potential is 5 V. What i

s its speed there, assuming energy is conserved?
Physics
1 answer:
Taya2010 [7]3 years ago
8 0

Answer:

The speed is 7.07\times10^{4}\ m/s

Explanation:

Given that,

Speed of proton v= 10^{5}\ m/s

Final potential = 10 v

Initial potential = 5 V

We need to calculate the speed

Using formula of energy

\dfrac{1}{2}mv^2=eV

v^2=\dfrac{2eV}{m}

The speed of the particle is directly proportional to the potential.

v^2\propto V

Put the value into the formula

(10^{5})\propto 10....(I)

For 5 V,

v^2\propto 5.....(II)

From equation (I) and (II)

\dfrac{(10^{5})^2}{v^2}=\dfrac{10}{5}

v=70710.67\ m/s

v=7.07\times10^{4}\ m/s

Hence, The speed is 7.07\times10^{4}\ m/s

You might be interested in
Meme on newtons law of motion (should me made ur self not from any searh engine)
k0ka [10]
He will be a pilot and he will fly the plane over bridges fewwww
8 0
1 year ago
A series of pulses, each of amplitude 0.1 m, is sent down a string that is attached to a post at one end. The pulses are reflect
AleksAgata [21]

Answer:

 A_resulting = 0.2 m

Explanation:

Let's analyze the impact of the pulse with the pole, this is a fixed obstacle that does not move therefore by the law of action and reluctant, the force that the pole applies on the rope is of equal magnitude to the force of the rope on the pole (pulse), but opposite directional, so the reflected pulse reverses its direction and sense.

With this information we analyze a point on the string where the incident pulse is and each reflected with an amplitude A = 0.1 m, the resulting is

           A_res = 2A

           A_resultant = 2 .01

           A_resulting = 0.2 m

8 0
2 years ago
How longitudinal waves are formed
vfiekz [6]

Answer:

forever

Explanation:

6 0
3 years ago
Read 2 more answers
A cat dozes on a stationary merry-go-round, at a radius of 5.5 m from the center of the ride. Then the operator turns on the rid
bixtya [17]

Answer:

u_{s}=0.56

Explanation:

For the cat to stay in place on the merry go round without sliding the magnitude of maximum static friction must be equal to magnitude of centripetal force

F_{s.max}=\frac{mv^2}{r} \\

Where the r is the radius of merry-go-round and v is the tangential speed

but

F_{s.max}=u_{s}F_{N}=u_{s}mg

So we have

u_{s}mg=\frac{mv^2}{r}\\ u_{s}=\frac{v^2}{gr}\\ Where\\v=\frac{2\pi R}{T} \\So\\u_{s}=\frac{(\frac{2\pi R}{T} )^2}{gr} \\u_{s}=\frac{4\pi^2 r}{gT^2}

Substitute the given values

So

u_{s}=\frac{4\pi^2 5.5m}{(9.8m/s^2)(6.3s)^2} \\u_{s}=0.56

6 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
Rainbow [258]

Explanation:

Usually when we think of waves, we think of transverse waves.  These are waves where points move up and down perpendicular to the motion of the wave.  Examples include water waves, whipping a rope, or even doing the "wave" in a crowd.  You can think of these as "two dimensional" waves.

Longitudinal waves are waves where points move left or right, parallel to the motion of the wave.  In other words, there is compression and expansion of the medium.  Examples include sound waves, or pulses in a slinky.

4 0
3 years ago
Other questions:
  • Jamison spins around 5 times without moving any direction. What was the total displacement?
    15·1 answer
  • The ____ of a sound wave is a measure of its loudness.
    6·1 answer
  • A ______ is a tiny packet of energy
    6·1 answer
  • A kid pulls on a rope with 20 newtons of force. The block and tackle system pulls up a 160 newton box. What is the mechanical ad
    8·1 answer
  • n the metric system the acceleration due to gravity near Earth's surface is about 9.81 meters per second per second. What is the
    6·1 answer
  • Which is an example of a mixture made of parts that can easily be separated?
    15·1 answer
  • A uniform electric field has magnitude E and is directed in the negative x direction. The potential difference between point a (
    10·1 answer
  • A disk ring of inner radius a and outer radius b lying on the y − z plane has a uniform surface electric charge density +σ(>
    6·1 answer
  • how long would it take for a resultant upward force of hundred Newton to increase the speed of 50 kg object from hundred metre p
    11·1 answer
  • How do i calculate the kinetic energy
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!