Answer these questions about a light year.?

light travels 300,000,000m/sec, and one year has approximately 32,000,000 seconds. a light year is the distance light travels in one year. based on this data:

a. state the speed in m/sec using scientific notation
b. state the speed in km/sec using scientific notation
c. state the number of seconds in one year using scientific notation
d. calculate the distance in meters of one light year
e. state this distance in centimeters

What are the applications of electromagnetic waves

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?