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UCBXPhys1Exam2.tst
Howmuchheatmustbeaddedtoa8.0-kgblockoficeat-8°Ctochangeittowaterat14°C? Thespecific heat of ice is 2050 J/kg · C°, the specific heat of water is 4186 J/kg · C°, the latent heat of fusion of ice is 334,000 J/kg, and 1 cal = 4.186 J.
A) 140 kcal B) 780 kcal C) 730 kcal D) 810 kcal E) 180 kcal
Two 4.0 cm -diameter disks face each other, 1.5 mm apart. They are charged to +/- 13 nC. 1) What is the electric field strength between the disks?
Eight identical light bulbs are connected in parallel with a 120-V power source, by two long leads with resistance 1.4 Ohms. 210 mA flow through each bulb, What is the resistance of each bulb
A uniform meter stick is freely pivoted about the 0.20-m mark. If it is allowed to swing in a vertical plane with a small amplitude and friction, what is the frequency of its oscillations
A 75-W, 120-V bulb is connected in parallel with a35-W, 120-V bulb. What is the net resistance
The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform acrobatic maneuvers.
A proton accelerates from rest in a uniform electric field of 630 N/C. At one later moment, its speed is 1.60 m/s, Determine its kinetic energy at the end of this interval
A 10-kg picture is held in place by two wires, the first hanging at 35.0° to the left of the vertical and the second at 45.0° to the right of the vertical. What is the tension (in N) of the first wire
A race car is driven at a constant velocity of 200 km/h on a straight, level track. The power delivered to the wheels is 150 kW. Compute the total resistive force on the car
A 1.67 m tall person lifts a 2.34 kg book from the ground so it is 2.22 m above the ground. Calculate the work done by the person
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
What is the maximum height the rocket reaches. How long is the rocket in the air.
A cat dozes on a stationary merry-go-round, at a radius of 5.4 m from the center of the ride. Then the operator turns on the ride and brings it up to its proper turning rate of one complete rotation every 6.2 s
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