14) Which of the following simple machines provides the least mechanical advantage?
a) a block-and-tackle assembly that lifts a 1100
N load when you provide a 200 N input force
b) All four machines are equally efficient.
c) a wheel of radius 0.73 m with an axle of
radius 0.10 m
d) a wedge with sides 63 mm long and a base
10 mm wide
e) a lever 1 m long whose fulcrum is 63 cm
from the input force and 37 cm from the load

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?