Are all 1.5 volt household batteries the same on the inside?

Molecules in a liquid don't all have the same speed, why does a liquid cool down when it evaporates?

Two toy cars (16kg and 2kg) are released simultaneously on aninclined plane that makes an angle of 30' with the horizontal.

How much work is accomplished when a force of 400 N pushes a box across the floor for a distance of 10 meters? A. 4000 N B. 4000 J C. 40 J D. 40 N

If you were trying to design the most efficient nuclear fission reactor possible, what ratio of U-235 to U-238 would you want? Explain why.

In one day, a 75-kg mountain climber ascends from the 1500-m level on a vertical cliff to the top at 2400 m. The next day, she descends from the top to the base of the cliff, which is at an elevation of 1350 m.

Which distance can be most accurately measured with a ruler? a. the size of an object under a microscope b. the width of a book c. the length of a river d. the distance between two cities?

What is the largest meteoroid that has collided with this planet

What is the upper layer of the atmosphere

How are selective breeding and genetic engineering different? They are not different. Selective breeding involves biotechnology. Genetic engineering involves biotechnology. Both B & C are correct.

When the sum of all forces acting on a block on an inclined plane is zero, the block?