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A system does 112 J of work on its environment and gains 72 J of heat in the process.
(a) What is the change in the internal energy of the system?
J
(b) What is the change in the internal energy of the environment?
A 12 kg weather rocket generates a thrust of 250 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 560 N/m, is anchored to the ground. What is the rocket's speed while the s..
Calculate the pressure at the center of pipe A. Suppose T = 10?C.
A high-energy pulsed laser emits a 1.5-ns-longpulse of average power 1.8×1011W. find Determine the energy delivered in each pulse.
A double slit experiment is performed with sodium(yellow) light of wavelength 589.3nm and the interference pattern is observed on a screen 100 cm away. determine the separation between slits
You are at a rock concert, and the sound intensity reaches levels as high as 120 dB. Calculate the amplitude of this oscillating force
A 90 g bead on a 60 cm long string is swung in a vertical circle about a point 200 cm above the floor
Body A in the figure weighs 122 N, and body B weighs 33.5 N. The coefficients of friction between A and the incline are, What is the acceleration of A if A is initially at rest
A hydraulic jack is made with a small piston 1.3 cm in diameter that is used to move a large piston 5.2 cm in diameter. how heavy a load can he lift with the jack
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. compute the mass of the aluminum cup
A hunter aims directly at a target (on the same level) 113 m away. If the bullet leaves the gun at a speed of 255 m/s, by how much will it miss the aim.
A resistance R and a 3-H inductance are in series across a 60-Hz ac voltage. What is the ac input voltage
Determine the value of the electric potential. calculate the acceleration of the ball when it is 3 cm from the surface and again at the position determined in part b.
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