Which of the following is a long-term benefit of regularly participating in physical activity?

two 5.5 kg balls of clay are thrown at eachother. a red ball of clay is thrown at 9 m/s and a green ball of clay is thrown at 5 m/s. the balls stick together when they collide. what will be the post collision velocity of the balls?

What is the volume of a marble that has a mass of 3 g and a density of 2.7 g/ml?

DC versus AC problem. Suppose your DC power supply is set to 15 V and the vertical setting on the oscilloscope is at 5 V/div.

he pressure inside a bottle of Champagne is 4.5 atm higher than the air pressure outside. The neck of the bottle has an inner radius of 1.0 cm. What is the frictional force on the cork due to the neck of the bottle?

A 1200-kg car accelerates it's speed from 4 m/s to 10 m/s in 3 seconds. Find the car average speed, the car acceleration, the distance traveled by, & the net force on car

What is the speed of a car going v=1.000mphv=1.000mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately.

What made it possible to construct skyscrapers in the 1800s

A 4.0-kilogram object is accelerated at 3.0 meters per second2 north by an unbalanced force. The same unbalanced force acting on a 2.0-kilogram object will accelerate this object toward the north at (1) 12 m/s2 (3) 3.0 m/s2 (2) 6.0 m/s2 (4) 1.5 m/s2

Religion, astrology, and handwriting analysis are all believed in and used by many people. How are they different from psychology?

A ball is thrown straight down a at 10.0 m/s from a 32.4 m-high building. How long does it take to reach the ground? What is the speed the moment before it hits the ground?