An electron travels 1.49 m in 7.4 µs (microsecWhat is its speed if 1 inch = 0.0254 m? Answer in units of in/min.

Question

asked Oct 17, 2022 209k views

1 Answer

Mobilecat · Answer 1 · 2022-10-22T20:00:31+0000

Step-by-step explanation:

Write what you know

Speed = Distance / Time

micro- = 10^-6

write your conversions as fractions

1 in / 0.0254 m

1 min / 60 sec

First convert time to regular seconds

7.4 x 10^-6 seconds

Use Velocity

1.49m / (7.4 x 10^-6) s

We've written our conversions in fractions because units cancel out just like numbers

$\frac{1.49m}{7.4 * {10}^( - 6) } * (1in)/(0.0254m) * (60sec)/(1min)$

Multiply all the fractions accross and youll have your answer