How many protons are in an element with an atomic number of 8 and a mass number of 18?

A star is held together by:gravitynuclear fissionnuclear fusionacceleration

Why can chemical energy and nuclear energy be considered a potential energy

How can you tell one element from another?

How do scientists know the Earth's magnetic field has reversed itself many times in the past?

What occurs at thermal equilibrium?

Calculate the momentum of 5.07 kg egg that is dropped from a roof and falls 2 seconds before hitting the ground.

Make a prediction based on your understanding of the cause-and-effect relationship between environment and trait: what happens when an environmental change is too extreme for the population of organisms to adapt?

You are holding the axle of a bicycle wheel with radius 35.0 cm and mass 1.00 kg. You get the wheel spinning at a rate of 75.0 rpm and then stop it by pressing the tire against the pavement. You notice that it takes 1.

Why would the time of flight depend on the angle of the launch

If someone drove for 20 minutes going 30 m/s, how far did they drive? A. 1.5m B. 0.67m C. 600m D. 36,000m