If an ice cube melts at 0°C but water freezes at 0°C what is the difference between melting and freezing in terms of energy involved with phase changes and be particles of substances during the phase changes?

If the mass of a material is 44 grams and the volume of the material is 15 cm^3, what would the density of the material be?

What term is used to describe the force causes solor systems to form, holds the erath in orbit

Suppose a miracle car has a 100% efficient engine and burns fuel having an energy content of 40 MJ/L. If the air resistance and overall frictional forces on this car traveling at highway speeds is 1000 N, what is the overall limit in distance per

What is the wavelength of an earthquake wave if it has a speed of 7km/s and a frequency of 8hz

How does temperature affect thermal energy?

Does the size of the particles change as the substance changes state?

What is the Z number of an atom with 9 protons, 8 neutrons, and 7 electrons? 7 8 9 16 17

What is the most dense crust

V is the velocity of a particle moving along the x axis as shown. If x = 2.0 m at t = 1.0 s, what is the position of the particle at t = 6.0 s?

A compound consisting of atoms of small atomic mass is more likely to require