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In a 100 m linear accelerator, an electron is accelerated to 1.60% of the speed of light in 36.0 m before it coasts for 64.0 m to a target. What's the electron's acceleration during the first 36.0 m?

User Sjor
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Final answer:

To find the electron's acceleration in a linear accelerator, we use the kinematic equation v^2 = 2as, considering an initial velocity of zero. The final velocity is 1.60% of the speed of light, and after substituting values and solving for acceleration, we find the electron's average acceleration is approximately 3.20 x 10^12 m/s^2.

Step-by-step explanation:

To calculate the electron's acceleration during the first 36.0 m of travel in a linear accelerator, we need to use kinematic equations. The electron reaches 1.60% of the speed of light, which is approximately 4.80 x 106 m/s (since the speed of light is roughly 3 x 108 m/s). We'll assume the electron starts from rest, which is a common assumption in these types of problems unless otherwise specified.

The kinematic equation that relates final velocity (v), initial velocity (u), acceleration (a), and displacement (s) is:

v2 = u2 + 2as

Since the initial velocity u is 0 (the electron starts from rest), the equation simplifies to:

v2 = 2as

Now we rearrange the equation to solve for acceleration a:

a = v2 / (2s)

Substituting in the values, we get:

a = (4.80 x 106 m/s)2 / (2 x 36.0 m)

After performing the calculations:

a ≈ 3.20 x 1012 m/s2

This is the average acceleration of the electron over the 36.0 m during which it is being accelerated.

User Jobsamuel
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