Is an unburned lump of coal kinetic energy and potential energy

Although you can see the pencil, it appears broken in the glass of water. This is because

Minerals are considered to be Answer made out of rocks the building blocks of rocks extremely rare and valuable difficult to find

An astronomical unit is defined to be A the average distance from the Earth to the Moon. B the average distance from the Earth to the Sun. C the average distance from our Sun to the nearest star.

1) What is radiation? 2) Give two ideas of how to block radiation in space.

A pen has a mass of 150g and a volume of 10mL. What is the density of the pen?

Which of the following describes a physical change? A. Formation of a new substance caused by combining substances B. Water changing from liquid to gas through evaporation or boiling C. Formation of a new substance caused by application of heat

A wave seen at the ocean's shore is which kind of wave? A. Surface wave B. Transverse wave C. Latitudinal wave D. Longitudinal wave

The acceleration due to gravity is equal to second squared. (round to 2 significant digits)

In the diagram above (not to scale), Vx/y = 12.57 meters/second and Vy/z = 5.21 meters/second. What is the value of the resultant vector?

What are the Respiratory organs?