Give four reason why it is important to clean the teeth regularly

Why are distant objects in the universe moving away from Earth? Because the light they emit is redshifted. Because Earth's gravity pushes them away Because the universe expanding Because of a supernova event

A runner exerts a force of 234 N against the ground while using 1100 W of power. How long does it take them to run a distance of 30.0 m

How does a object get charged

Explain how do batteries work?

Some examples of solar ejections

A ball player catches a ball 3.24 s after throwing it vertically upward. With what speed did he throw it?

Most metallic ores are produced by which two of processes? a) Metamorphic and Sedimentary b) Igneous and Metamorphic c) Igneous and Sedimentary d) Cementation and Compaction

Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?

SI unit of mass and gravity

What is the difference between porosity and permeability