a large crate is pulled along horizontal ground by a chain which makes an angle of 30° above the ground. The chain applies a force of 500 N. Calculate the magnitude of the force with which the crate is pulled along the ground by the chain.​

How can one distinguish breccia from conglomerate? a. breccia contains angular clasts and conglomerate contains rounded clasts. b. breccia contains rounded clasts and conglomerate contains angular clasts. c. different minerals cement breccia than cement conglomerate. d. breccia contains sand and conglomerate contains silt.

What are the three ways that an object can accelerate

Which accurately compares concave and convex lenses?