12) A6 kg object, which is connected to the 4 kg object, is pushed by SON force as shown in the
diagram below.
(i) Find acceleration of each object.
(ii) What is the force that the 6 kg object applies on the 4 kg object?
(iii) What is the force that the 4 kg object applies on the 6 kg object?
50N
6 kg
4 kg

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge