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(a) A charge of -250e is uniformly distributed along a circular arc of radius 3.90 cm, which subtends an angle of 44°. What is the linear charge density along the arc? C/m
(b) A charge of -250e is uniformly distributed over one face of a circular disk of radius 2.00 cm. What is the surface charge density over that face? C/m2
(c) A charge of -250e is uniformly distributed over the surface of a sphere of radius 2.00 cm. What is the surface charge density over that surface? C/m2
(d) A charge of -250e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere? C/m3
The gravitational acceleration of bodies dropped near the Moon's surface is about 1.6 m/s^2. Find the time for an object dropped from rest to fall 3.0m on the Moon Find the time for an object dropped from rest to fall 3.0m on Earth.
A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure (101.325 kPa) and the density of the fluid in the manometer is 12.0 g/cm3. When the vessel is under 11.5 psi of vacuu..
Compute the mass of a ball and speed of a puck after collision.
When she lets go of the rope her initial velocity is 2.25 m/s at an angle of 35 degrees above the horizontal. If she is in flight for .616 s, explain how high above the water was she when she let go of the rope?
Water flows through a Venturi meter with a pipe diameter of 10.0 cm, The U-tube manometer is partially filled with mercury, Find the flow rate of the water in the pipe
A standing wave on a 77.4cm long string has three antinodes. If the string has linear mass density 3.92×10?5kg/m and tension 10.1N , what are the wave's frequency
At the end of the trip she measures the pressure to be 3 105 Pa. Ignoring the expansion of the tires, find out the air temperature inside the tires at the end of the trip.
A jet of water squirts out horizontally from a hole near the bottom of the tank. If the hole has a diameter of 3.40 mm, what is the height, h, of the water level in the tank.
A bus is traveling up a hill at a speed of 34m/s. The hill is 23 degrees relative to horizontal and the coefficient of static friction between the bus's tires and the road is 0.6
It takes a student t = 7.6 s to push a block m = 11 kg at a constant velocity over a distance of d = 8.2 m. Write an expression for the energy required to move the block along this path in terms of the variables provided
A child sitting 2.00 m from the center of a merry-go-round moves with a speed of 1.65 m/s. Compute the centripetal acceleration of the child (m/s), and the net horizontal force exerted on the child (N). (m = 29.0 kg).
Monochromatic light falling on two slits 1.9×10?2mm apart produces the fifth-order fringe at an 8.9? angle
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