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A horizontal water main with a cross-sectional area of 186 cm2 necks down to a pipe of area 57.8 cm2. Meters mounted in the flow on each side of the transition coupling show a change in gauge pressure of 74.0 kPa. Determine the flow rate through the system, taking the fluid to be ideal.
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*M^2. find the rotational kinetic energy K of the rotating wheel
A laser emits a light beam with a power of 5 mW. How many photons per second does this laser emit
q1. a disk with radius 0.5 m is oriented with its normal unit vector n at an angle of 30deg to a uniform electric field
Find out a magnitude and direction of the electric field
A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal. Determine the work done by the force of gravity
a light spring whose unstretched length is 2.0 cm. You're going to use this spring to measure charge. First, you attach one end of the spring to the ceiling, What is the charge on the ball
Three moles of an ideal monatomic gas expands at a constant pressure of 2.00atm ; the volume of the gas changes from 3.40×10?2m3 to 4.60×10?2m3. Calculate the amount of work the gas does in expanding
Which of the following factors do not affect the pressure at the bottom of a cup? Explain answer a. Depth of the liquid b. Density of the liquid c. The value of the acceleration of gravity d. The shape of the cup
Illustrate what is the uniform speed of a gondola when the Ferris wheel is running at full speed?
A person's body is producing energy internally due to metabolic processes. What is the temperature of the coldest room in which this person could stand and not experience a drop in body temperature
determine the mass of liquid ammonia that boils away before thermal equilibrium. Assume an excessive amount of liquid ammonia is present and that the liquid ammonia does not react with the copper.
A 58.6g mass connected to a spring with a force constant of 31.2 N/m oscillates on a horizontal, frictionless surface with an amplitude of 3.70 cm. Calculate the total energy of the system
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