Is the melting of an ice cube considered a physical change or a chemical change? Explain your reasoning.

A gas has an initial volume of 24.6 L at a pressure of 1.90 atm and a temperature of 335 K. The pressure of the gas increases to 3.50 atm, and the volume of the gas increases to 31.3 L.

A car traveling at 35 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration.

a particle of mass m and charge q moving with velocity v in a magnetic field B. The velocity of the particle is perpendicular to the field, and the particle is moving in a circle

Tennis balls cost $7 for a can of 3 he gives the cashiet $40 for the balls and receives$12 in change how many balls did steve buy?

Joan purchased a large, tough cut of beef. To make the meat more tender what should she do

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light

In an experiment, 108 J of work was done on a closed system. During this phase of the experiment, 79 J of heat energy was added to the system. What was the total change in the internal energy of the system?

J. J. Thomsons experiments provided evidence that an atom

How does our sun differ from most other main sequence stars?