7. Give me an atom with the following characteristics. a. Halogen b. Chalogen
c. Alkali metal d. Boron
e. Lanthanide series
f. Alkaline Earth metal

What happens to light waves from a star as the star moves away from earth?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.