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A charged belt, 50 cm wide, travels at 30 m/s between a sourceof charge and a sphere. The belt carries charge into the sphere ata rate corresponding to 100 μA. Compute the surface chargedensity on the belt.
Near the South Pole, a supply plane going at 120 mph drops a 60 kg supply package into a sled that was initially at rest. Estimate the mass of the sled
a water balloon is launched from ground level with an initial velocity of 12.4 m/s @ 27.0° above the horizontal. Find how high it goes above the launch height
You push your physics book 1.70 m along a horizontal tabletop with a horizontal push of 2.60 N while the opposing force of friction 0.750 N. How much work does gravity do on the book
a person pulls a 10kg weight across a floor a distance x=2.0m by pulling on a rope with 50N directed 15 degrees above the horizontal. compute the work done by each one
two insulated charge cu spheres a and b of identical size have charge qa and -3qa when they are brought in contact with
A place kicker must kick a football from a point 28.0 m (= 30.6 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. What is the vertical velocity of the ball at the time it reaches the crossbar
Find the rms voltage across each element in an RLC circuit with R= 9.8kilo ohms , C= 0.17microF , and L= 25mH . The generator supplies an rms voltage of 150V at a frequency of 65.0Hz .
A hydrogen atom initially in the ground state absorbs a photon, which excites it to the = 4.00 state, estimate the frequency of the photon
The capacitor in an RC circuit(R = 100 Ω, C = 45 uF) is initially uncharged. Find the charge on the capacitor in the circuit one time constant (r = RC) after the circuit is connected to a9.0-V battery.
A hollow cylindrical tube of 2.5 m long is open at one end and closed at the other end. What is the linear distance between a node and the adjacent antinode for the third harmonic in this pipe?
particle moves in a plane according to the equations of motion x = Rsin(?t) + ?Rt y = Rcos(?t) + R ; Find the instantaneous velocity and acceleration when the particle is at its maximum and minimum value of y
The brass bar and the aluminum bar in the drawing are each attached to an immovable wall. At 22.0 °C the air gap between the rods is 1.99 x 10-3 m
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