Do you think energy can be "used up?" Why or why not?

The atomic number is equal to the number of: Question 1 options: protons in the nucleus of an atom of that element. times the atom orbits the Earth electrons The atomic number is equal to the atomic weight.

A small hot-air balloon is filled with 1.01*106 l of air (d = 1.20 g/l). as the air in the balloon is heated, it expands to 1.10*106 l. what is the density of the heated air in the balloon?

What happens when female rain is in the desert

At a certain instant, coil A is in a 10-T external magnetic field and coil B is in a 1-T external magnetic field. Both coils have the same area and are oriented at right angles to the field.

If the final position vector of a moving object has a smaller magnitude than the initial position vector, then the change in the object's position vector has a positive magnitude.

What is the total number of atoms in the following formula? CaBr2 4 3 2 1

Object A with a mass of 500 kilograms hits stationary object B with a mass of 920 kilograms. If the collision is elastic, what happens after the collision? A) Both object A and object B move forward but with different velocities.

A young man walks daily through a gridded city section to visit his girlfriend, who lives m blocks East and nblocks North of where the young man resides.

Aliens from planet Moby have three alleles for skin color: R (red) W (white) and B (Blue). If all of these alleles are codominant and aliens on planet moby can only inherit two alleles for a gene, what are the six possible genotypes for skin color

The difference between two numbers is 15. When twice the smaller number is subtracted from three times the larger number, the difference is 58. What is the larger number?