Amass of gas under constant pressure occupies a volume of 0.5 m3 at a temperature of 20 degree celsius. using the formula for cubic expansion, what will be the volume at a temperature of 45 degree celsius without a change in pressure?

a) 0.5228938 m3
b) 0.0228938 m3
c) 0.5457875 m3
d) 0.0457875 m3

The air that we breath is made mostly of which gaseous molecule

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)