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An aluminium cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 400 g sample of silver at an initial temperature of 90°C is placed in the water. The stirrer is utilized to stir the mixture gently until it reaches its final equilibrium temperature of 32°C. Compute the mass of the aluminium cup.
What is an angular acceleration
Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 544 N, is applied at an angle β = 8° to the forward dashed line. (a) What is..
a 2340 kg satellite used in a cellular telephone network is in a circular orbit at a height of 770km above the surface
Your car engine slows down from 3600 rpm to 1200 rpm in 5.0 second. Evaluate the total number of revolutions the engine makes in this time
while riding on a ferris wheel at the state fair you are seated 10 m from the axis. if you make a complete rotation
You would like to produce an electric field of 640 N?C in theregion between two parallel plates that are separated by a distanceof 0.16m. What voltage should you connect across the plates?
Assume that a bowling ball, initially traviling at 12.0m/s,has 5 times the mass of a pin and that the pin goes off at 80* fromthe original direction of the ball. Calculate the final speed of the pin
a sinusoidal wave travels along a stretched point. a point along the string has a max velocity of 1m/s and a max displacement of 2cm
two hockey players are traveling at velocities of v1 13 ms and v2 -19 ms when they undergo a head-on collision. after
A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. calculate the rate of interstellar extinction in the direction of the star
a projectile is fired from a submarine traveling horizontally at 20 ms with respect to the water as shown in the figure
What will happen when two waves of the same amplitude and wavelength meet at the same place and the same time and they are in phase, What is the shape of the output sound waveform
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