A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 30with the horizontal. The force he exerts is parallel to the slope. If the speed of the crate increases at a rate of 1.5 m/s2, then the work done by the man is:.

Why should seat belts not be mandatory quick plz

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false