Abox is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. the surface of the ramp is the x-plane. what is the magnitude of the force of tension if the net force in the x direction of 98 n?
a.)57 n
b.)139 n 1
c.)78 n
d.)183 n
b 139

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Avoltaic cell converts chemical energy to

Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative