I'm bad at physics help? cheak the pic ;-;​

(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.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

Which atomic model was proposed as a result of j. j. thomson’s work?