You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. Calculate the energy.

What are the horizontal and vertical parts of vectors called

From least to most dense, the media are: air, water, polyethylene, and flint glass. How does density affect the angle of refraction of a light beam? (Remember to use the correct phrasing when answering this question).

Explain the relationship between work, force, and distance.

What at the bottom of the ocean? take that! detailed answer!

Magnesium (Mg) has 12 protons and an atomic mass of 24. How many neutrons does magnesium have?

Identify the scenario below as to whether they increase, decrease, or not change the frequency in which a string vibrates and thus change its pitch. Assume that no other changes are happening. 1. Tightening a string for greater tension 2.

Explain what each of the following scientists contribute to the atomic theory

A fully charged parallel-plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same? Select one or more: a. delta V increases b.

Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source of energy? a. the heat released from a living organism: potential energy b.

What should you do when operating a boat in large waves and high wind?