A 0.5 kg bullet is moving at 6000 m/s and it hits a tree. It travels into the tree at a distance of 4 m. What is the strength of the force (work) that stop a bullet?

Awheelhas a radius of 4.8 m. howfar (path length) does a point on the circumference travel if thewheel is rotated through angles of 30°, 30 rad, and 30 rev, respectively?

Explain vector addition, triangle method and parallelogram method

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.