The block brake consists of a pin-connected lever and friction block at b. the coefficient of static friction between the wheel and the lever is μs = 0.3, and a torque of 5 n⋅m is applied to the wheel. determine if the brake can hold the wheel stationary when the force applied to the lever is (a) p = 30 n, (b) p = 70 n.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

Which of these is the best way to manage a natural resource