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A thick walled steel cylinder used for storing compressed air is fitted with a safety valve which lifts at a pressure of 1.0 x 10^6M/m2. It contains air at 17 c and 0.8(4)N/m2. At what temp will the valve lift?
what is the velocity of plane with respect to the ground. A nonconducting sphere has radius R = 2.53 cm and uniformly distributed charge q = +6.00 fC. Take an electric potential at the sphere's center to be V0 = 0.
A ball of mass 10.7 g with a speed of 27.1 m/s strikes a wall at an angle 24.0o and then rebounds with the same speed and angle. calculate the average force exerted by the ball on the wall
A cat walks along a plank (length = 4.00 m and mass = 7.00 kg). What is the mass of the cat
If a ball has a net positive charge of 57 ?C, how many electrons must be added to make the ball neutral
A silt of width a is illuminated bymonochromatic light of wavelength 650nm at normal incidence. Calculate the value of a , when the first minimum falls at an angle of diffracction 30 degree
Two spherical conductors are connected by a long conducting wire and a total charge of 20.0 μC is placed on this combination. One sphere has a radius of 4.0 cm while the other has a radius of 6.0 cm. Explain the reasoning of the steps that allow you ..
The drive propeller of a ship starts from rest and accelerates at 3.10 x 10-3 rad/s2 for 2.60 x 103 s. Find the total angular displacement of the propeller
A boy whirls a stone in a horizontal circle of radius 1.2 m and at height 1.5 m above level ground. What is the magnitude of the centripetal acceleration of the stone
A power plant that uses the temperature gradient of the ocean has been proposed. The system is to operate between 21°C (surface temperature) and 6°C (water temperature at a depth of about 1 km).
An incoming 40 keV photon interacts with an atom by the Compton scattering process, what is the energy of the scattered photon
A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 521 N. As the drawing shows, Find the tensions in the rope to the left and to the right of the mountain climber
A horizontal wire of length 0.11 m, carrying a current of 3.0 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
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