Which electromagnetic wave would have a wavelength approximately the size of the tip of a pencil?

If a projectile fired beneath the water, straight up, breaks through the surface at a speed of 13m/s, to what height above the water will it ascend

Which index of refraction represents the least optically dense material? A) 2.65 B) 1.77 C) 2.42 D) 1.58

A net force f is required to give an object with mass m an acceleration a. if a net force 6f is applied to an object with mass 2m. what is the acceleration in this object

How long does it take decaying organisms to transform into fossil fuels?

Which has more interia, a car with mass of 900 kg or a car with with a mass of 1500 kg? Explain your answer

Which of the following substances will show the smallest change in temperature when equal amounts of energy are absorbed? water air sand concrete

The downward acceleration of a falling body on Earth is 9.81m/s2. On the moon the same quantity is 1.62m/s2. An astronaut in a space suit has a mass of 145kg.

Explain how a guitar produces sound by using the terms standing waves and resonance.

Why can only igneous rock be formed directly from magma?

Streamlined objects are smooth and?