a 70 kg desk sits on the floor motionless If gravity is pulling it with an acceleration of 9.8 m/s/s how much force is gravity exercising on the desk

A student placed a pencil in a cup of water. The pencil appears broken because light - always travels in a straight line makes the water in the glass evaporate bends when it passes through water reflects the pencil on the water's surface

A 22.6-kg box is being pushed from the bottom to the top of a frictionless ramp. When the box is pushed at a constant velocity, the nonconservative pushing force does 58.0 J of work.

The slope of the line on any speed vs time graph is equal to the objects?

is a climate cycle where the temperature of the Ocean changes because of movements of air and ocean currents. During this period, the trade winds in the south, causing the water to move from the region to the region.

Which of the following describes the bending of light due to a change in its speed?

Which nuclei is not radioactive? A. Am-241 B. Mg-24 C. Pu-241 D. U-238

What is the method of charging used when you run a straw with fur

A man runs at a velocity of 6.2 m/s for 11.5 minutes. When going up and increasingly steep hill, he slows down at a constant rate of 0.25 m/s^2 and comes to a stop. How far did he run?

Find the period and frequency of a green photon that had a wavelength of 525 nm

Match these items. 1 . involuntary muscle tissues that have fibers 2 . tendons muscle controlled by will 3 . cardiac muscle muscle not controlled by will 4 . voluntary muscle arm muscle 5 . biceps heart muscle