Suppose you lift a 20 kg box by a height of 1.0 m.

a. how much work do you do in lifting the box

How are the forces observed related to the motion of the earth around the sun

2. What two measurements are needed to calculate work?

Which most likely has the greatest conductivity? a warm plastic rod a cool rubber tube a cool lead metal strip a warm copper wire

After the discovery of the electron, scientists knew that atoms must also have positively changed particles because? A. Atoms have mass B. Atoms have electrical charge C. Atoms have neutral charge

A block of size 20m x 10 mx 5 m exerts a force of 30N. Calculate the maximum & minimum pressure exerted by the block on ground? hello yeah tell me the answer of this question

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.