What process causes an object to permanently change its shape?

What happens when an object transfers energy?

If a machine has 100% efficiency, it means that A. output work is equal to input work. B. output force is equal to input force. C. output work is twice the input work. D. output force is twice the input force.

Calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. Classify this reaction. Ca (s) + 2KCl (aq) → CaCl2 (s) + 2K + (aq)

Which of the following scientists physics in Egypt

What is the movement of heated materials upward and the movement of cooled materials downward called?

If two forces of equal magnitude act on an object that is hinged at a pivot, the force acting farther from the pivot must produce the greater torque about the pivot.

How is conductivity related to resistance?

8. A 300g mass hangs at the end of a string. A second-string hang from the bottom of that mass and supports a 900g mass. (a) Find the tension in each string when the masses are accelerating upward at 0.700m/s2.

Calculate the speed (in m/s) of an electron and a proton with a kinetic energy of 1.85 electron volt (eV). (The electron and proton masses are me = 9.11 ✕ 10-31 kg and mp = 1.67 ✕ 10-27 kg. Boltzmann's constant is kB = 1.38 ✕ 10-23 J/K.)

Jack and George meet in the middle of a lake while paddling in their canoes. They come to a complete stop and talk for a while. When they are ready to leave, Jack pushes George's canoe with a force F to separate the two canoes.