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A 2084 Kg car moving with an initial speed of 65 mph along ahorizontal road skids to a complete stop in 12.8 seconds find:
A: the work done on the car by the force of Kinetic Frictionand
B: the Coefficient of Kinetic Friciton between tires and theroad.
When a battery is connected to a 89.0-? resistor, the current is 3.91 A. When the same battery is connected to a 417.0-? resistor, the current is 0.848 A. Find the emf supplied by the battery
compute the magnetic field of a torso with 60 turns if the current in each turn has a magnitude of i0.2a at a distance
In Rutherford’sfamous scattering experiment that led to the planetary model of theatom, alpha particles (having a charge of + 2e and a mass of 6.64 x10-27 kg) were fired toward a gold nucleus with charge of + 79e. Thealpha particle, initially very..
An airplane propeller is 2.38m in length (from tip to tip) and has a mass of 117kg. What is the angular acceleration of the propeller
The wind exerts a force of 325N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find out the magnitude and direction of the net force on sailboat.
Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. If the original star rotated once in 34 days, find the angular speed of the neutron star
Suppose that a particle accelerator is used to move two beams of particles in opposite directions. In a particular region, electrons move to the right at 9350 m/s and protons move to the left at 1.230 × 103 m/s.
Mars rotates about its axis once every 88 642 s. What is the rotational period of Mars according to the beings on the spaceship
A 82 fisherman jumps from a dock into a 124 rowboat at rest on thewest side of the dock. what is the final velocity of the fisherman and the boat
A charge of 4.25 uC is placed at each corner of a square 0.100 m on a side. Determine the magnitude of the force on each charge
what is the area of the plates of a 2 f parallel plate capacitor given that the separation between the plates is 0.5
the speed of a transverse wave on a string is 479 ms while the wavelength is 0.257 m. the amplitude of the wave is 2.06
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