A 3 ton car involved in an accident is towed to the repair shop to get it fixed. It is placed on a piston with an area of 120 meter square. What is the minimum amount of force that a mechanic should apply on the 0.4 m square opposite end of the piston, in order to lift the vehicle?

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

What should the power status of a circuit be when measuring resistance with an ohmmeter?

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right