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Water at 25 degrees celius is pumped from 100kPa to 5MPa in a pump with an efficiency of 75%
A. Use w(ideal) = v delta P
B. Calulate the real pump work
C. Calulate the temperature rise in the real pump
estimate the average power output on the way up. A speedboat moving at 39 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of -3.15m/s2 by reducing the throttle.
Two point charges are fixed to rectangular coordinate system, Charges of q1 = 3.5uC and q2 = -15 uChave coordinates (0.55,0) and (0,0) in meters respectively
If a pipe wrench of length 18 cm is positioned vertically on pipe, with the handle pointing up, and a force of 150 N, what is the torque on the pipe
A dolphin leaps out of the water at the angle of 46° above the horizontal. The horizontal component of the dolphin's velocity is 9.40 m/s. Find out the magnitude of the vertical component of velocity.
A ball is thrown at an angle of 30.9 degrees above the horizontal at a speed pf 8.77 m/s. What is the vertical component of the ball's velocity
Find out the magnitude and direction of forces
Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person, What is the largest possible value for the frequency of the other ultrasonic wave
A 57 kg student sits on a chair which is solely supported by a solid 1/2 meter long steel rod 1cm in diameter. To the nearest micron (millionth of a meter) what is the change in length of the rod produced by the student's weight.
make Use of Stefans law to calculate the total power. What is the magnitude and direction of the force she exerts on you.
suppose the specific heats of milk and coffe are the same as that of water, and neblect the specific heat of the container.
A person pulls a toboggan for a distance of 40m along the snow with a rope directed 25 degrees above the snow. The tension in the rope is 83N.
A 120-g mug at 21C is filled with 210g of coffee at 91C. suppose all of the heat lost by the coffee is transferred to the mug, what is the final temperature of the coffee? The specific heat capacity of the mug is 7.8 X 10^2 J/(Kg C)
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