2. A boy lifts a 30N toy car 3 meters above the ground. How much work
did the boy do on the car?
Work (J) = Force (N) x Distance (m)
Work=
X
Work=

A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.

Which planet do you think would be easiest for humans to colonize some day?