Pyramid has height h and a square base with side x. The volume of such a pyramid is given by V=1/3x^2h. Erosion causes the height to decrease at a rate of 0.006 m/year, and the sides to decrease at a rate of 0.004 m/yr, when x=180m h=150m . Estimate at this moment in time, how fast the volume of the pyramid is changing

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?