A simple pendulum consists of a bob attached to the end of a brass wire. At room temperature of 20C, the pendulum has an oscillation period of 3.00 s. if the wire is heated of 377 C, the pendulum would complete one oscillation in? a of brass = 18.7 x 10^-6 C^o-1

a. 2.98 s

b. 3.00s

c. 2.99 s

d. 3.01s

e. 3.02 s

the roadside assistance operater pumps 95 litres of air into a completely flat tire and adjusts the pressure to 2.2 atm. If the outside temperature is -20 degree Celsius the number of moles of air inside the tire is equal to?

a. 1.3 moles

b. 10 Moles

c. 130 moles

d. 8.7 moles

e. 0.10 moles

The average kinetic energy of molecules in an ideal gas would increase by

a. Increase the volume, while keeping P and N constant

b. Increasing the number of molecules, while keeping P and V constant

c. Reducing the pressure while keeping the T and V constant

d. Increasing the pressure while keeping T and V constant

e. Reducing the volume while keeping P and N constant