What is the net force on a 50-newton weight hanging on a string tied to the ceiling?

a. 0 N

b. 5 N

c. 490 N

Your 60-watt light bulb is plugged into a 110-volt household outlet and left on for 3 hours. Of each kWh costs $0.11, about how much money does the energy company charge you?

What length of a 22 gauge american wire gauge copper wire is needed to make a resistance of 500 ohm?

Describe one way in which the layer of gas above affects the earth

What is the basic unit for length

Why is a hollow chamber with a small hole in it a good approximation a blackbody? Question about this: is the small hole what makes the chamber hollow?

How many structures do prokaryotic cells have in common with the eukaryotic cells? 2 3 4 5

An astronaut throws a rock. the rock travels through outer space at a constant velocity. which statement applies to the motion of this rock? A - an unbalanced force is acting on the rock, causing it to accelerate.

What is a unit of acceleration? a. m/s b. m/s2 c. m2/s d. kg-m/s2

Windmill energy transformation

The flywheel of a steam engine runs with a constant angular velocity of 150 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.2 h.