Find work.
f = 200 newtons
d = 50 meters
w = ?

a. 10,000 j
b. 4 j
c 10,000 n
d. 4 n

(15 )

Determine the maximum r-value of the polar equation r =3+3 cos 0

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

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.