a heavy box is pulled across the floor with a rope. The rope makes an angle of 60 degrees with the floor. A force of 75 N is exerted on the rope. What is the component of the force parallel to the floor

We can determine the velocity of a wave when given the frequency and the a. amplitude b. Equilibrium c. trough d. wavelength

For each of the following, indicate whether the condition will cause the membrane potential to become more positive, more negative, or largely unchanged when compared to the normal physiological resting membrane potential.

The amplification of two waves occurs because of which of the following? Choose one answer. a. destructive interference b. standing interference c. antinode interference d. constructive interference

Problem 4. A child sleds down a hill and collides at 5.6 m/s into a stationary sled that is identical to his. The child is launched forward at the same speed, leaving behind the two sleds that lock together and slide forward more slowly.

Which field in an 802.11a plcp frame are used to initialize part of the transmitter and receiver circuits?

If a wave is traveling at a constant speed, and the frequency decreases, what would happen to the wavelength? A) It would increase B) It would decrease C) It would remain constant D) It would drop to zero

What conditions lead you to see an absorption line spectrum from a cloud of gas in interstellar space?

A car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. Calculate the average speed.

A 500 lb steel beam is lifted up by a crane to a height of 100 ft and is held there. A) How much work is being done to hold the beam in place? B) How much work was done to lift the beam?

If Light is shone through the slits of a card onto a sheet of white paper describe what is seen.