Alight-year is:

a. the distance light travels in one year
b. about 19 trillion miles
c. based on the distance from the earth to the sun
d. all of the above

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Which component is used to measure the current in a circuit? oa. switch ob. resistor oc. ammeter the answer is c. for y’all plato people