A positive charge on an object is caused by:

an excess of protons

an excess of electrons

a deficiency of protons

a deficiency of electrons

What is the medium that sound waves travel through when a person speaks? a. Air c. Vocal cords b. Your tongue d. It does not use a medium

What is the difference between balanced and unbalanced forces

The pressure in a fluid is affected by which characteristic of that fluid? A. The weight of the fluid B. The gravity of fluid C. The amount of oxygen atoms in the fluid D. The amount of hydrogen atoms in the fluid

If there is a current of 15A in a circuit for 5 minutes, what quantity of electric charge flow through the circuit?

A baseball is hit with a speed of 28.0 m/s at an angle of 42.0 ∘. It lands on the flat roof of a 12.0 m - tall nearby building. If the ball was hit when it was 1.

After the layers of sediment are deposited in one place, they are

A rectangular gasoline tank can hold 50.0 kg of gasoline when full. What is the depth of the tank if it is 0.500-m wide by 0.900-m long, given that the density of gasoline is 6.8 x 102 kg/m3

Which statement best describes the kinetic theory of matter? Matter is made up of compounds that are in constant motion and have energy. Matter is made up of particles that seldom move and do not possess energy.

Why can we see our breath on a cold winter day

True or false describing a metal as malleable means that it can be pounded into a new shape