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Question: It is proposed to generate hydroelectric power from a dammed river as shown below.
a. Draw a control volume for the system and label all control S\lrfaces.
b. Find the power generated by a 90 percent efficient water turbine if lw = 90 ft. 1bfAbm.
A rock climber throws a small first aid kit to anotherclimber who is higher up the mountain. What is the vertical height between the two climbers
Compute time, distance, average speed, average acceleration, speed, and acceleration for motion with constant acceleration, Tabulate and graph data and compute results. Draw reasonable conclusions from quantitative data and communicate results to ot..
The Mars rover was deployed on the surface of Mars in July 1997. At one point during its subsequent mission, radio signals took about 9 min to travel from Earth to the rover. How far was Mars from the from Earth at that time? ___________m
You set two parallel slits 0.2 mm apart at a distance of 1 m from a screen and illuminate them with light of wavelength 400 nm. Find the distance between the first and second dark lines of the interference pattern on the screen
The spin cycles of a washing machine have two angular speeds, 431rev/min and 622rev/min . The internal diameter of the drum is 0.440m. Find the laundry's maximum tangential speed
An object of mass 6.8 kg is attached to aspring of force constant 1720 N/m. Calculate the maximum velocity the object has during its motion
A mortar crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action. How long will the mortar shell remain in the air
An electron is accelerated by a constant electric field of magnitude 275 N/C. Discover the acceleration of the electron. Use the equations of motion with constant acceleration to discover the electron's speed after 9.50*10-9 s, assuming it starts fro..
a person whos weight is 80 kg is balancing on top of a basketball. the basketball itself is on the ground. what is the
Wanted to understand the physics behind usage of passive antennae and matched load combination, to absorb, control and reduce the Electromagnetic-Field (s.a. due to microwave radiation from cellular phone towers), within a confined area (s.a. a ro..
A circus juggler performs an act with balls that he tosses with his right hand and catches with his left hand. what is the maximum number of balls he can juggle
The masses are Q=0.400 kg, R=0.700 kg, and S=0.800 kg. Calculate the moment of inertia (of the 3 masses) with respect to an axis perpendicular to the xy plane and passing through x=0 and y=-2. [Since the masses are of small size, you can neglect t..
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