What are the three types of friction and when does each apply

What is the acceleration of a cabinet of mass 45 kilograms if Jake and Ted push it by applying horizontal force of 25 newtons and 18 newtons respectively in the same direction? (Assume a flat, frictionless surface.)

What would happen if a solid temperature increases

Two similar cars are driving on a hill. The red car is traveling faster than the blue car. How could the blue car have more total energy than the red car? A. The red car could be losing energy faster than the blue car. B.

Any energy transformation involves the loss of some energy as A. motion. B. electric charge. C. light. D. heat.

Which of the following statements correctly describes the law of conservation of energy? Group of answer choicesa. Mass cannot be created but it can be destroyed under extreme pressures. b.

The density of ice is 0.93 g/cm3. what is the volume, in cm3, of a block of ice whose mass is 5.00 kg? remember to select an answer with the correct number of significant figures.

Two planets p1 and p2 orbit around a star s in circular orbits with speeds v1 = 44.0 km/s, and v2 = 56.2 km/s respectively. (a) if the period of the first planet p1 is 700 years what is the mass, in kg, of the star it orbits around? kg

The theory describing the movement of the plates is called plate motion theory. True or false?

Would electromagnetic waves exist if changing magnetic fields could produce electric fields but changing electric fields could not, in turn, produce magnetic fields? Explain.

A person walks 4.0 kilometers north, then 4.0 kilometers west. His displacement is closest to