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Assume that a tunnel is dug across the earth(radius R) passing through its center. Find the time a particle takes to cover the length of the tunnel if
a) it is projected into the tunnel with a velocity (gR)^1/2
b) it is released from a height R above the tunnel
c) it is thrown vertically upward along the length of the tunnel with a speed (gR)^1/2
Solenoids produce magnetic fields that are relatively intense for the amount of current they carry. To make a direct comparison, Find the magnetic field at the center of the solenoid
An airplane maintains a speed of 645 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north. What time interval is required for the trip if the plane flies through a headwind blowing at 32.1 km/h toward t..
monatomic molecules adsorbed on a surface are free to move on this surface and can be treated as a classical ideal two
Calculate the Current Drawn by a DC Motor with an Efficiency of 80%
Figure 25-32 shows a circuit section of four air-filled capacitors that is connected to a larger circuit. The graph belowthe section shows the electric potential V(x) as afunction of position x along the lower part of thesection, through capacitor..
A gardener pushes down on the handle of a lawnmower, applying a force of 250 Newton. find what is the acceleration of the 20 kilogram lawnmower
A 72 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 15° above the horizontal. If the coefficient of static friction is 0.49, what minimum force magnitude is required from the rope to start the crate moving
Three resistors {R1 = 12.0 ?, R2 = 18.0 ?, and R3 = 36.0 ?} are connected in parallel, and in turn connected to a 70.0 V source with an internal resistance of 1.00 ?. Determine the equivalent resistance of the combination
A satellite has a mass of 100 kilogram and is located at 2.00 x 10^6 above the surface of the Earth. Obtain the magnitude of gravitational force on satellite
A student makes a simple generator by using a single square loop 24 cm on each side. The loop is then rotated at a frequency of 60 Hz in a magnetic field of 0.044 T.
Heat is added to an open pan of water at 100.0?C, vaporizing the water. How much energy is transferred to the system as heat
A skier speeds down a smooth ski slope which is at an angle of 22° with the horizontal. What is the acceleration experienced by the skier
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