A tractor ploughing a field accelerates at 2 m/s2

for 10 metres, after which its velocity is 7 m/s.

Calculate the tractor's velocity before it started accelerating.

A spaceship moving through deep space will continue moving at the same speed forever. What is the name of the property that allows this to happen? A. Force B. Normal force C. Mass D. Inertia

What is true of the waste generated by nuclear power? Remains hazardous for a long time. Creates acid rain. Increases greenhouse effect. Cause air pollution.

Why does a black ball appear black in white light?

During an ice hockey game, George had two shots on goal: one shot from 5m away at 10m/s and one shot from 10m away at 40m/s. Which shot did the goalie have a better chance of blocking?

Waves that move matter back and forth are called a. transverse waves b. longitudinal wave c. Medium wave

What is the best hypothesis to use for this investigation

Quantum physics would most likely be needed to understand the motion of which of the following? A. an atom B. a cell C. a ball D. a galaxy

Sharon throws a 0.20 Kg with an acceleration of 10 m/s/s. (a) What force did she exert on the ball? (b) What force did the ball exert on her?

What are three ways that extra carbon is getting to the atmosphere?

A girl runs 20.9 m/s East for 13.7s. How far does she go?