Driving to work one morning, you get a flat tire. When using the car jack, you apply 120N of force to the jack and the jack in turn applies 2000N of force to lift the car up. What is the mechanical advantage of the jack?

Av citi auon A particle with velocity U = - 21 + 4 in meters per second at i = 0 undergoes a constant acceleration of magnitude a = 3ins - 2 at an angle O = 130° from the positive direction of the x axis.

Ravens eat meat but they don't kill it themselves. What kind of animal does this make them?

A speedboat travels from the dock to the first buoy, a distance of 20 meters, in 18 seconds. It began the trip at a speed of 0 m/s. By the time it reached the buoy, it was going 10 m/s. What was the average velocity of the boat?

What change of state occurs when wet clothing on a washing line dries out?

Two plates separated by a distance d = 12.8 mm are charged to a potential difference V = 7.25 V. A constant force F = 8.31 N pushes a - 8.30 mC charge from the positively charged plate to the negatively charged plate.

Why is it important for engineers to design bumper cars safely

What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?

Which statement describes how light behaves when it strikes a translucent material? A. Light is scattered. B. Light is transmitted. C. Light is reflected. D. Light is absorbed.

A certain gas is present in a 15.0 l cylinder at 2.0 atm pressure. if the pressure is increased to 4.0 atm the volume of the gas decreases to 7.5 l.

Choose all the answers that apply. To qualify as a planet, a celestial object must: have an irregular shape revolve around the sun orbit in a clear area have enough gravity to have a spherical shape have a satellite