Examine the forces acting on a car on a ramp. Select the forces or force components that need to be added together to calculate the net force in the x-direction. Check all that apply. pls help 1 FN

2 –Ff

3 –Fg

4 Fg (cos 15°)

5 Fg (sin 15°)

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.

hot magma rises and pushes up toward the lithosphere, and as it cools it cycles back down toward the core to be heated again.