16. A crate is sitting on the bed of a truck. The truck is moving at 21 km/h. Applying a constant braking force, the truck comes to a stop in 30. m. Find the minimum coefficient of friction between the crate and the bed of the truck if the crate does not slide. The crate has a mass of 10.0 kg.

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?

Which stable element is used to determine the age of volcanic rock? a- argon b- carbon-14 c- potassium d- carbon-12