The temperature of a heat engine is 500k some of the heat generated by the engine flows to the surroundings which are at a temp of 125k

What are 15 waterproof objects that are found around the house?

On a 30degrees day, there is an explosion. The sound is heard 3.4s after seeing the flash. How far away was the explosion

Four students are playing a game of tug-of-war. The two students on the right have masses of 54 kg and 57 kg, and pull with a combined force of 140 N.

Which of these materials would result in horizontally polarized light? A. reflection from a tall aluminum pole B. refraction from a glass sheet C. reflection from an iron shed D. reflection from wet asphalt E. refraction from a water surface

8. A person with a mass of 15 kg is walking on a flat surface at a velocity of 5 m/s. What is the walker's momentum?

The electric field near the earth's surface has magnitude of about 150n/c. what is the acceleration experienced by an electron near the surface of the earth? express your answer to two significant figures and include the appropriate units.

Minerals are considered to be Answer made out of rocks the building blocks of rocks extremely rare and valuable difficult to find

the solubility product of lead fluoride is 3.6 x 10-8. what is its solubility in 0.10M NaF solution, in grams per liter

A passenger on a bus moving east sees a man standing on a curb. from the passenger's perspective, the man appears to

Which of the following is the best example of a proper hypothesis? Water will flow faster through tightly packed soil than through loosely packed soil. I think there is no effect on hearing if you listen to loud music for only three hours a day.