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A thermos contains 150 cm3 of coffee at 850C. To cool the coffee, you drop two 11 gram ice cubes into the thermos. The ice cubes are initially of 00C and melt completely. Compute the final temperature of the coffee? Treat the coffee as if it were water.
Tasha with a nearsighted eye has near and far points of 16 cm and 25 cm, respectively. What is the power of the lens she uses
During 0.15 s, a wheel rotates through an angle of 2.74 rad as a point on the periphery of the wheel moves with a constant speed of 2.16 m/s
A bowler holds a bowling ball (M=6.5 kg) in the palm of his hand. His upper arm is vertical, his lower arm (1.7 kg) is horizontal. What is the magnitude of the force of the biceps muscle on the lower arm?
4.71 mol of neon gas is initially at a pressure of 4.23 atm and a temperature of 282oC. If the gas is cooled at constant pressure, until the volume is one third of the initial volume, what is the final temperature
Physics: Compression of column; constant of a spring, 1. A 4.8-m-tall, 30-cm-diameter concrete column supports a 5.0Ã?105 kg load. By how much is the column compressed?
can a person in principle travel from earth to the galactic center which is about 2.30times104 lightyears distant in a
A proton initially has a v = 4.0i-2.0j+3.0k and then 4 sec later has a v (Vector) = -2.0i - 2.0j+5.0 k (in m/s). For that 4.0 second, Determine the protons average acceleration
A model rocket blasts off from the ground, rising straightupward with a constant acceleration thast has a magnitude of 86.0m/s2 for 1.70 seconds, at which point its fuel abrutlyruns out. Air resistance has no effect on its flight. What maximum altitu..
A 1 m long pedulum with a 2kg mass is pulled back 0.1m and after that released, so that it swings back and forth. How did they solve T= 2.007 seconds.
one mole of an ideal gas at 1 atm and 0 C is compressed isothermally from 50 L to 20 L. During this process, energy is transferred out of gas. What is the change of internal energy for this gas
Luggage is transported from one location to another in anairport by a conveyor belt. At a certain location, the belt movesdown an incline that makes an angle of 1.7° with the horizontal.
There is evidence that elephants communicate via infrasound,generating rumbling vocalizations as low as 14 hz that can travelup to 10 km. The intensity level of these sounds can reach98 dB, measured a distance of 4.5 m from the source.
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