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A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120 meter starts from rest and accelerates at 36.5 rad/s2, determine how fast will the water be traveling when it leaves the pump after it has been accelerating for 9.00 sec?
question two trains on separate tracks move toward one another. train 1 has a speed of 130kmhr and train 2 has a speed
A hydrogen atom in its ground state is excited to the n = 5 level. It then makes a transition directly to the n = 2 level before returning to the ground state. What are the wavelengths of the emitted photons
A picture hangs on the wall suspended by two strings, as shown in the figure, with theta = 68°. The tension in string 1 is 1.4 N. What is the weight of the picture
A solid, square pinewood raft measures 3.6m on a side and is 2.70 m thick. What is the total mass of swimmers that the raft can carry and float withits top surface at water level?
You want to support a sheet of fireproof paper horizontally, using only a vertical upward beam of light spread uniformly over the sheet. If the paper is black and hence absorbs all the light that hits it, find what must be the intensity of the light..
a an electron has an initial velocity of 2.00 106 ms in a uniform 8.00 x 105 nc strength electric field. the field
A perfectly insulated system has work done by it at a rate of 13 W. At what rate is the internal energy of the system changing?
As a space shuttle moves through the dilute ionized gas of Earth's ionosphere, the shuttle's potential is typically changed by-1.0 V during one revolution. Assuming the shuttle is a conducting sphere of radius 8.0 m, estimate the amount of charge ..
When two or more resistors are connected in parallel to a battery, The voltage across each resistor is the same. The current leaving the battery equals the sum of the currents in all resistors.
The moon orbits the earth at a distance of 3.85 x 108 m. Assume that this distance is between the centers of the earth andthe moon and that the mass of the earth is 5.98 x 1024kg. Find the period for the moon's motion around the earth.
A small ball with a mass of 49.0g and a charge of ?0.170?C is suspended from the ceiling by a string. What is the tension in the string when the second ball is directly beneath the first ball
An electric dipole is formed from two charges, , spaced 1.50cm apart. The dipole is at the origin, oriented along they-axis. What is the electric field strength at the point
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