On a winter -3.C morning, the pressure in a car tire reads 28. psi on a pressure gauge. After several hours of highway traveling, the pressure reads 35. psi.
Assuming the volume remains constant and normal atmospheric pressure of 15. psi, what is the tire temperature?
A) 45C
B) 25C
C) 41C
D) 55F
E) 55C
Question 2A 4.0 F and a 1.0 F capacitor are connected in parallel and both are charged with a 12. volt battery. They are disconnected from the battery and reconnected positive side of the 1st to negative side of 2nd, and neg. side of 1st to pos.
side of 2nd.
(a) How much was each charged when connected to the battery?
(b) After reconnecting, how much charge is stored?
(c) What potential exists across the final parallel combination?
Question 3Consider a sound intensity of 16. 10-8 W/m2.
(a) What is the sound intensity level?
(b) At twice the distance from the source, what would be the intensity level?
(c) At how many times the original distance would the intensity level decrease by 12. db?
Question 4A shear force of 400 N is applied to one face of an aluminum cube with sides of 30 cm. What is the resulting relative displacement? (The shear modulus for aluminum is 2.5 1010 N/m2)
A) 1.9 10-8 m
B) 2.6 10-8 m
C) 4.4 10-8 m
D) 5.3 10-8 m
E) 8.2 10-8 m
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