Question 9 0125 Which of the following describes an action-reaction pair?
O A. Earth's gravity pulls down on you, and your gravity pulls up on
Earth.
B. Friction slows you down, and the normal force holds you up.
C. Your hat pushes down on your head, and your feet push down on
the ground.
D. You push a car forward, and the car pulls you forward.

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.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Students in an introductory physics lab are performing an experiment with a parallel-plate capacitor made of two circular aluminum plates, each 11 cm in diameter, separated by 1.0 cm. how much charge can be added to each of the plates before a spark jumps between the two plates? for such flat electrodes, assume that value of 3×106n/c of the field causes a spark.