Question

The mass of an electron is 9.109 × 10⁻³¹ kg Notice how the momentum of an electron changes as its velocity approaches the speed of light.

(a) What is the momentum of an electron which is moving at the speed of a car on a highway, say 25 m/s?

Answer 1

The momentum of an electron moving at the speed of a car on a highway (25 m/s) is 2.2775 × 10⁻³⁰ kg·m/s.

Step-by-step explanation:

The momentum of an object can be calculated using the formula p = mv, where p is momentum, m is mass, and v is velocity. To find the momentum of an electron moving at the speed of a car on a highway (25 m/s), we can simply plug in the values into the formula: p = (9.109 × 10⁻³¹ kg)(25 m/s) = 2.2775 × 10⁻³⁰ kg·m/s.