What do you observe as you immerse the empty jug in a bucket which contains water? Explain why you observe this phenomenon.

Explain how electron microscopes work and why some scientists might prefer to use electron microscopes instead of light microscopes.

The lightning bolt discharge lasts one millisecond. What is the average current flowing from the cloud to ground? Answer in units of A.

Calculate the de broglie wavelength (in picometers) of a hydrogen atom traveling at 425 m/s.

The universe we live in consists of how many dimensions?

What is the weight of an apple on earth if the mass of an apple is. 1 kg

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planers in orbit around the Sun.

What wave-like property of light causes it to bend when encountering an opening? A. Reflection B. all the above c. Refraction d. none of the above e. diffraction

Which of the following statements describe sliding friction? Select all that apply. 1.) a force that causes an object to increase speed 2.) a force in which one of the objects involved must be a liquid or a gas 3.

What do a broken rode and a volcano eruption have in common

What is the input of energy for a device that provides 50 units of useful energy and has an efficiency of 0.55?