Are we dead yet? Because I'm bored

If a laser beam is shot straight up from the bottom of a pool so that it intersects the pools surface in a perpendicular fashion, what will the angle of refraction be in the air? A) 0 B) 45 C) 90 D) This cannot ve measured

Calculate the momentum of a 1.60*10^3 kg car at 20.0 m/s

When is the daily tidal range greatest?

A shunt resistance of 8 Ω is connected to a galvanometer of resistance of 100 Ω. The current in the galvanometer is 0.42 A. What is the current in the circuit?

A tank contains one mole of carbon dioxide gas at a pressure of 6.70 atm and a temperature of 23.0°C. The tank (which has a fixed volume) is heated until the pressure inside triples. What is the final temperature of the gas?

A 5.90-g lead bullet traveling at 410 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in

How do you scientists determine the number of neutrons in an isotope of an atom?

Why is energy efficiency important to society's need to be efficient with energy usage?

A wave has a wavelength of 9 mm and a frequency of 14 hertz. What is its speed?

Where would you weigh the most? Mars Pluto Earth The Sun The moon