How many neutrons does element X if it's atomic number is 28 and its mass number is 87

A bullet is fired and a bullet is dropped simultaneously from the same height. The bullet that is fired hits the ground first. True False

Which statement best describes the temperature of the oceans surface water. A - Areas at high latitudes have the coldest water B - Areas with a high salinity have the coldest water C - Areas close to the equator have the coldest water D - Areas with

What characteristics determine how easily two substances change temperature

Which of the following directly contributed to soil erosion on the Great Plains in the 1930s? O railroads O heavy rains O farming O homesteading

Which of the following pieces of technology expand the sense of sight

How to get to the daley center from pink line?

nitially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discovered. How did the scientific world respond to this new information?

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

An engineer wants to set up simple password protection with no usernames for some switches in a lab, for the purpose of keeping curious co-workers from logging into the lab switches from their desktop PCs.

How are frequency and wave period related?