A 2 kg ball is 10 meters above the ground and moving at 12 m/s. What is the total mechanical energy of the ball with respect to the ground?

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

What is the relationship between the direction of motion of the balloon and the wind currents

According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring