How does a crowbar work?

A 100-kg cannon at rest contains a 10-kg cannon ball. When fired, the cannon ball leaves the cannon with a speed of 90 m/s. What is the recoil speed of the cannon?

What does the word deficiency mean a. need b. excess c. problem d. lack

Hubble measured the velocity of the movement of galaxies by using

What did you observe when food coloring was added to the glass that was not in the cake pan?

Extensive deforestation was carried out on a piece of land to convert it into a farmland. what is the most significant cost involved in converting the land back into a forest? a. the soil quality must be improved using fertilizers. b.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.