What is the wavelength of a sound wave with a frequency of 50 hz? (speed of sound is 342 m/s) ?

The only surface current that completely circumscribes earth is called the

What is brownian movement and what is its important in the explanation of matter?

Two vectors have a sum A and their difference is B. If A=B then, the angle between the two vectors is a) 0 b) 45 c) 120 d) 90 (all the options are in degree)

What type of effect do you predict friction will have on the potential energy of the skater?

Two astronauts on opposite ends of a spaceship are comparing lunches. One has an apple, the other has an orange. They decide to trade. Astronaut 1 tosses the 0.130 kg apple toward astronaut 2 with a speed of vi, 1 = 1.05 m/s. The 0.

How can you measure mold on food?

A cup of cold water and a pool have the same temperature. Which contains more thermal energy? a The cup has more because it has less water b The pool has more because it has more water c The cup has less because it has more water d The pool has less

What is the unit for kinetic energy?

You exert a 100-N force on a pulley system to lift 300 N. What's the mechanical advantage of this system? How many sections of rope support the weight?

What is parameter, ferromagnetic