Which two particles are present in the nucleus of an atom?

Electrons and neutrons

Electrons and molecules

Protons and neutrons

Protons and electrons

What living things began to increase in numbers following this mass extinction?

What is the capital of Guinea

What would the potential of a standard hydrogen electrode (s. h. e.) be under the given conditions? [h+]=0.70 mph2=2.4 atmt=298 k?

What type of reactions releases energy. a. Combustion b. Displacement c. Double displacement d. Synthesis

A small, 100 g cart is moving at 1.20 m/s on a frictionless track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.850 m/s. What is the speed of the large cart after the collision?

The slope of the line on any speed vs time graph is equal to the objects?

True or False? a globular cluster is a group of older stars that are clustered together.

The doppler effect is the change in observed frequency due to

Which of the following is NOT a vector quantity? (A) Acceleration (B) Average velocity (C) Linear momentum (D) Potential energy (E) Force

Which of Newton's laws of motion is demonstrated by a hammer pounding a nail into a board