Hey who has discord and wants to talk

(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.

Where do magnetic lines of force enter earth?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?