When lifting a load of 3000 kg with a hydraulic press, 500J work was performed. At that time, the small piston, driven by force, descended 10 times, 10cm each time. Calculate: a) the force exerted by the small piston; (b) how many times the area of ​​the large piston is greater than that of the small one. All the work was used to lift the load.​

The primary benefit of taking into account a child's interests while selecting exercise activities is that the child will a. play more willing with others b. succeed at their favorite activity c. allow parents to relax afterwards d. gain motivation to exercise select the best answer from the choices provided.

What are the dimensions of the cross section that passes through the points a, f, g, and d?

In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.