Caroline(45kg) is riding looping roller coaster(radius = 25 m) at cedar point. At the bottom of the loop she has a speed of 30m/s. what is the normal force of her seat on Caroline?

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure

How can waves travel through ground?

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical