Se o Universo tem uma idade definida, de aproximadamente 13,7 bilhões de anos, o que existiu antes do big-bang?

suppose you had two socks sticking together in the clothes dryer from static electricity. what happens if they are spun gently?

If a polar is swimming with an average of 2.6 m/s how far will it traveled after 120 seconds?

Explain how changes in temperature affects the particles motion of a substance.

If heat is applied constantly to a system and the system does not rise to the level of the heat applied, what is the most probable explanation?

What could you do to make the beam of light from the laser refract less as it exits the prism?

Light passes from a material with index of refraction 1.25 to one with index of refraction 1.72. The angle of incidence is 34.3°. What is the angle of refraction?

How tall would a tower need to be if the period of a pendulum were 30. seconds

0.100kg of a nuclear is converted to energy per day. What is the power produced by this fuel?

When do the centre of gravity and center of mass of an object coincide?

Your employer asks you to build a 18-cmcm-long solenoid with an interior field of 5.8 mTmT. The specifications call for a single layer of wire, wound with the coils as close together as possible. You have two spools of wire available.