Identify the machines in which both a lever and a wedge are used

Which best explains why scientific theories grow stronger over time?

What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature?

An 8000-kg engine pulls a 40,000 kg train along a level track and gives it an acceleration a1 = 1.20 m/s 2. What acceleration (a2) would the engine give to a 16,000-kg train?

If you weigh 690 N on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 25.0 km? Take the mass of the sun to be ms = 1.99*1030 kg, the gravitational constant to be G = 6.

What kind of geologic feature do all earthquakes occur?

If you apply a force of 1.0 n to a cart of mass 1.0 kg with negligible friction, what do you expect the acceleration to be?

How does a stars life begin?

Bart stole a watermelon and ran 5,000 feet from the cops and they chase lasted 0.1 hours how fast was Bart running in miles per hour

suppose you had two small boxes, each containing 1.0 g of protons. (a) If one were placed on the moon by an astronaut and the other were left on the earth, and if they were connected by a very light (and very long!

In a car changes its philosophy from 32 km/hour to54 km/hour in 8.0 seconds, what is its acceleration?