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sladkih [1.3K]
2 years ago
8

Consider (a) an electron (b) a photon, and (c) a proton, all moving in vacuum. Choose all correct answers for each question. (iv

) Which carry momentum?
Physics
1 answer:
DiKsa [7]2 years ago
4 0

Electron, photon and proton carry momentum .

  • De Broglie derived the relationship between the wavelength and momentum of matter. This relationship is known as de Broglie's relationship.
  • De Broglie's relationship is given by \lambda=\frac{h}{mv}   ...(1)
  • Momentum is the product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

Equation (1) can be written as   \lambda=\frac{h}{p}   where λ  is known as de Broglie wavelength and p is momentum , h = Plank’s constant

For photon , the momentum is given by   p=\frac{E}{c}   ...(2)  where c is the speed is the speed of light .

From equation (1) and (2) we can conclude that electron, photon and proton carry momentum .

Learn about more photon momentum here :

brainly.com/question/13112527

#SPJ4

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A ball is released from a vertical height of 40 cm. It rolls down a "perfectly frictionless" ramp and up similar ramp. What vert
vodka [1.7K]
Well, first of all, if the ramps are perfectly frictionless, then the ball
won't roll ... it'll slide.  Kind of like a bowling ball does at the beginning
of a shiny, highly-waxed lane.  You need friction against the ball to roll it.

But in any case, no matter what the slopes of the ramps are, even
if they have different slopes, the ball will rise on the second ramp
to the same height from which it was released on the first ramp.
3 0
4 years ago
Can anyone solve this for me?? I need help ASAP!!
Pie

Answer:

option A is rightttttttt

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6 0
3 years ago
A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly distributed over its cross section. i
ollegr [7]

Magnetic field outside it due to long wire is given by

B = \frac{u_o i}{2 \pi r}

Magnetic field due to long wire inside wire at any point

B = \frac{u_o i r}{2 \pi R^2}

Now the ratio of two magnetic field is given by

\frac{B_{in}}{B_{out}} = \frac{r_1/R^2}{1/r_2}

\frac{0.285}{0.200} = \frac{4*10}{R^2}

1.425 = \frac{40}{R^2}

R = 5.3 mm

8 0
3 years ago
A student pedaling a bicycle applies a net force of 400 N. The mass of the rider and the bicycle is 25 kg. What is the accelerat
Svetllana [295]

The acceleration is 16 m/s^2

Explanation:

We can answer this question by using Newton's second law, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:

F=ma

where

F is the force

m is the mass

a is the acceleration

In this problem, we have

m = 25 kg is the mass of the rider+bicycle

F = 400 N is the force

Solving for a, we find the acceleration:

a=\frac{F}{m}=\frac{400}{25}=16 m/s^2

Learn more about Newton's second law:

brainly.com/question/3820012

#LearnwithBrainly

6 0
4 years ago
Read 2 more answers
The lowest point in the state of Louisiana is New Orleans. The city’s elevation is 8 feet below sea level. Write the elevation o
Alex Ar [27]

Answer:

-8

Explanation:

sea level is another way of saying zero. If something is above or above sea level it is a positive integer. like a regular number. if something is below sea level it is a negative integer like negative numbers. They said 8 is the elevation but new orleans is BELOW sea level. that means the integer we are looking for is going to be a negative number. 8 is the number they told us and since it is below the sea level. The integer of new orleans that represents its elevation is -8.

7 0
4 years ago
Read 2 more answers
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