Why does blood make a complete loop in our bodies?

A chemical reaction takes place within a test tube. After the reaction, the test tube feels warmer than it did before the reaction. The reaction was: endothermic exothermic ectothermic esothermic

How does the turbine make electricity

Why is it important that the mouth and stomach are near the start of the digestive system? thx

The steam created from the boiler turns a turbine. What type of energy conversion does this represent? chemical energy to heat energy heat energy to mechanical energy steam energy to kinetic energy

What type of relief does a flat area have? a. high c. contour b. large d. small

One tuning fork vibrates at 440 Hz, while a second tuning fork vibrates at an unknown frequency. When both tuning forks are sounded simultaneously, you hear a tone that rises and falls three times per second.

A block sliding along a horizontal frictionless surface with speed v collides with a spring and compresses it by 2.0 cm. What will be the compression if the same block collides with the spring at a speed of 2v?

How does work get affected when a object is lifted up instead of using a ramp

Choose the correct statement. a. Usually, when one form of energy is converted to another, no energy is wasted. b. The total amount of energy in the universe is gradually decreasing. c. This statement illustrates the first law of thermodynamics. d.

A 10 cm3 block of paraffin (a type of wax) weighs 0. 085 N. It is carefully submerged in a container of gasoline. One cm3 of gasoline weighs 0.0069 N. a. What is the weight of the gasoline displaced by the paraffin? b.