If a 2-kg ball is thrown through the air at 20 m/s what is he momentum of the ball?

A length of aluminum wire has a resistance of 14.0 Ω at 36.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, the resistance of the wire increases to 31.1 Ω. (a) Neglecting thermal expansion, find the temperature of the oven.

A runner completes the 300-meter dash in 38 seconds. What is the speed of the runner? Round your answer to the nearest tenth. The answer would be in m/s

What is the relationship between distance and mass in termsnof gravitational force

Viruses are different from bacteria in that A / they can remain dormant on non-living surfaces B / they can be found just about anywhere C / they can infect just about every form of life

an object has a displacement of + 12 m in 6 seconds if the average velocity is found using the equation change in position / elapsed time what is the average velocity of the object be sure to include the correct signs and units in your answer

A star has a mass of 1.36 x 1030 kg and is moving in a circular orbit about the center of its galaxy. the radius of the orbit is 2.1 x 104 light-years (1 light-year = 9.5 x 1015 m), and the angular speed of the star is 1.1 x 10-15 rad/s.

Floating in deep space, you find yourself at rest next to a small asteroid. You reach out and tap the asteroid with a hammer. What happens to you in this process?

You walk forward at 1.5 m/s for 8s. Your friend decides to walk faster and starts out at 2.0 m/s for the first 4 s. Then she slows down and walks forward at 1.0 m/s for the next 4s. Make a distance-time graph of your motion and your friend's motion.

If the coolant in a refrigerator was not compressed back into a liquid after it flowed through the refrigerator what would happen

A electric model train travels at 0.339 m/s around a circular track of radius 1.75 m. How many revolutions does it perform per second, i. e, what is the motion's frequency?