Which describes the relationship between the frequency, wavelength, and speed of a wave as the wave travels through different media?

a). as speed changes, wavelength changes and frequency remains constant.
b). as speed changes, frequency changes and wavelength remains constant.
c). as speed changes, wavelength and frequency change. (not c)
d). as speed changes, wavelength and frequency remain constant.

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.