A baby carriage that is carrying twins is sitting at the top of a knoll that is 21 m high. The carriage with the babies is 48kg. What is the Potential Energy of the twins and the carriage? i have to do it with Potential Energy = Weight x Height Weight = Potential Energy / Height

Height = Potential Energy / Weight

Weight = Mass x 10

Mass = Weight / 10

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

80cm/s.

24cm/s.

53.3cm/s.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation