Relate the output of energy from a heat engine to the energy put into the heat engine, considering the second law of thermodynamics.

The Gulf stream moves heat towards the countries in the North Atlantic Ocean. How does this influence the climate in coastal regions of these countries? Select one: a. It causes drought. b. It prevents tornadoes. c. It reduces the amount of rainfall.

Was the fruit orange named after the color orange or was the color orange named after the fruit orange?

A car traveling north with the velocity of 30m/s slows down to a velocity of 10m/s within 10 seconds what is the cars acceleration

A Labrador retriever breeder needs to determine if three male pups who were born to Sadie, his black Labrador retriever, are the offspring of Sam, a yellow Labrador retriever from another breeder.

The star Betelgeuse is about 600 light-years away. If it explodes tonight, -we'll know because it will be brighter than the full Moon in the sky. -we'll know because debris from the explosion will rain down on us from space.

A baking tray is made of metal because its

A scientist mixes an unknown powder into a beaker of water. He then uses an indicator and finds that the pH of the resulting solution is 8.5. What can he infer from this observation? The unknown powder was acidic.

Which factors affect the resistance of a material? Check all that apply. length currer thickness temperature voltage

Is the air a good conductor or electricity or a good insulator?

Which lists only metalloids? arsenic (As), sulfur (S), and polonium (Po) antimony (Sb), tellurium (Te), and gallium (Ga) boron (B), germanium (Ge), and tellurium (Te) polonium (Po), aluminum (Al), and silicon (Si)