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An open rectangular tank is 2 m wide and 4 m long. The tank contains water to a depth of 2 m and oil (SG = 0.8) on top of the water to a depth of 1 m. Determine the magnitude and location of the resultant fluid force acting on one end of the tank.
The current in an electro magnet connected to a 240 V line is 14.5A.At what rate must cooling water pass over the coils if the water temperature is to raise by no more than 7.50C ?
Find the magnitude of the total force of the traction apparatus applied to the leg, assuming ? = 20°, the weight of the leg is 19 N and the weight hanging from the traction apparatus, m, is also 19 N
An insect with many legs is scuttling across the floor. Assume that each leg pushes with the same force at exaclty the same spot. What is the insects acceleration in terms of gravity
1. explain why you are safe and unaffected inside a car that is struck by lightning. also explain why it might not be
An object with a mass of .40 kg moving with a speed of 25 m/s is brought to rest after sliding on a rough surface. The coefficient of kinetic friction is .35. What is the stopping distance of the object?
a candle 8.80 cm high is placed in front of a thin converging lens of focal length 40.0 cm. what is the image distance
Steam at 18 MPa and 600 C is contained in a cylinder of volume 0.5 m^3. Calculate the heat rejcted by the steam
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
Originally a pattern in produced on a screen from light flashed on a two-slit mask. The center of the screen is C and is originally a spot of maximum constructive interference. Spot Z is the next spot of maximum constructive interference.
You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long and a knight traveling on horseback at .7c is holding a lance which he measures as 10 meters long. Which lance hits the other person first
A vacuum cleaner is connected to a 120V socket and uses 3.0 A when the back emf generated by the electric motor is 72 volts. What is the resistance of the coil in the motor?
A constant retarding torque of 15 m·N stops a rolling wheel of diameter 0.50 m in a distance of 21 m. How much work is done by the torque
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