What force is necessary to accelerate a 70kg object at a rate of 4.2m/s

squared

1. A sound wave has a frequency of 262 Hz and a speed of 343 m/s. What is the time between successive wave crests?

What is a voltmeter?

A space shuttle in orbit around the earth carries its payload with its mechanical arm. suddenly, the arm malfunctions and releases the payload. part a what will happen to the payload?

A car is initially moving at 35 km/h along a straight highway. To pass another car, it speeds up to 135 km/h in 10.5 seconds at a constant acceleration.

A light is traveling straight up out of the ocean, then moves out of the air. how do you expect the movement of the light wave to change?

How can you tell one element from another?

Which of the following is not an accurate statement about the attitude of teenagers when driving

the circumference of Earth's orbit is 938 million kilometres how fast does earth travel in km/h in one year

A material is said to be ductile if it

A professional soccer player succeeds in scoring a goal on 84% of his penalty kicks. assume that the success of each kick is independent.