Ahigh-altitude balloon is filled with 1.41 x 104 l of hydrogen at a temperature of 21 °c and a pressure of 745 torr. what is the volume of the balloon at a height of 20 km, where the temperature is -48 °c and the pressure is 63.1 torr

1.27 x 10⁵ L

Explanation:

V₁ = initial volume = 14100 L

V₂ = final volume = ?

P₁ = initial pressure = 745 torr

P₂ = final pressure = 63.1 torr

T₁ = initial temperature = 21 °C = 21 + 273 = 294 K

T₂ = final temperature = - 48 °C = - 48 + 273 = 225 K

Using the equation

= 1.27 x 10⁵ L

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.