What is the net work done on the 20kg block while it moves the 4 meters?

A. 240J

B. - 200J

C. 120J

D. 0J

A horizontal force of 50 N is applied to the object.

Compare and contrast what happens in a metal to what happens to a mass of water when each is heated

What changes would a cold front bring to an area with warm, dry weather? extended period of rain or snow several days of gray skies dry air and sunny skies rain or thunderstorms

The form of energy in fossil fuels is what kind of energy?

Which makes better packing material: a high density or a low density material why?

The amplitude of a sound is the Group of answer choices frequency of the sound. magnitude of displacement of a sound pressure wave. psychological aspect of sound related to timbre. amount of sound energy falling on a unit area.

Air at 38°C and 97% relative humidity is to be cooled to 18°C and fed into a plant area at a rate of 510 m/min. a. Calculate the rate (kg/min) at which water condenses. b.

a 7.26kg bowling ball (16 pounds) is at rest at the end of the bowling lane. : how long did you push the ball in this situation

Which is an example of speed? Cindy biked westward at 30 km/h. A rock is to the left of a flowerpot. A dog runs an average of 8 mph. Leo lives 2 miles north of Andre.

You need to design a capacitor capable of storing 3.0 10-7 c of charge. at your disposal, you have a 100 v power supply and two metal plates, each of area 0.490 m2 each. what is the limit of the separation of the plates? mm