An astronaut is in outer space and throws a ball. After she releases the ball:
Draw a free body diagram of the ball.
b. What is the net force on the ball?
c. If the ball was moving at 10 m/s right as she
a.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

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.

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.