3)What are the "bright stars" that seem to move against the sky? Are they really stars? What are they?

What is the length x of the side of the triangle below? (hint: use the cosine function)

If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around

Acar jack with a mechanical advantage of 6 needs to produce an output force of 600 n to raise a car. what input force is required? 6 n 100 n 600 n 3,600 n