Chance has taken a metal rod and wrapped a wire around it and attached it to a battery. Chance's device can produce which two forces?
A

electrical force and frictional force

B

electrical force and magnetic force

C

frictional force and gravitational force

D

magnetic force and gravitational force

Avalue that describes how heavy an object is and is related to the force of gravity is

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?