a water tank is 40m high and contains 4,000 kg of water. What is the gravitational potential energy of the water? show your work with the GUESS method

What is the centripetal force needed to keep a 3.0 kg mass moving in a circle of radius 0.50 m at a speed of 8.0 m/s

In the video, you will analyze the motion of three falling objects and compute their accelerations using distance and time measurements. you will then compare these accelerations with the standard value of the acceleration due to gravity on earth.

Chemical vapor deposition can be defined as the interaction between a mixture of gases and the surface of a heated substrate, causing chemical decomposition of some of the gas constituents and formation of a solid film on the substrate.

If v=10v, what value of R would limit l to 10 mA? (if you have 10 volts, what resistance would be needed to limit the current to 10 milliamps) A. 100 R B. 1000 ohms C. 10 ohms D. 1 R

If 270 million people in the United States jumped up in the air simultaneously, pushing off earth with the average force of 800 N each time of 0.10 seconds, what would happen to the 5.98*10^24 kg earth?

What is a mealworm a worm, an insect or an amphibian

What is the kinetic energy of a vehicle that has a mass of 3,500 kg and is moving at 40 m/s

Why did the wright brothers construct their own wind tunnel?

John heats 1 kg of soup from 25 °C to 70 °C for 15 minutes by a heater. How long does the same heater take to heat 1.5 kg of the same kind of soup from 20 °C to 80 °C? The energy output per unit time by the heater is constant.

What is a light-year equal to? A. the distance light travels in one year B. the time it takes light to travel 10 trillion kilometers C. the mean distance between the Sun and the center of our galaxy D.