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An 1100 kilogram car coast on a horizontal road with a speed of 19 m/s. After crossing an unpaved, sandy stretch of road 32 meter long, its speed decreases to 12 m/s. Obtain the magnitude of the average net force on the car in the sandy section.
A parallel-plate capacitor with only air between the plates is charged by connecting it to a battery. What is the dielectric constant of this material
A plane electromagnetic wave propagates in a vacuum in the z-direction. What is the mathematical expression for the magnetic field
the roller-coaster car is dragged up at the highest point where it is released passing the highest point with speed of
A 60 gram iron at 60o C is dropped into 200 gram of water at 20o C, What is the final equalibrium temperature of the system
a golf ball of mass 0.050 kg is at rest on the tee and has a velocity of 102 ms immediately after being struckif the
A hydrogen atom emits a photon that has momentum 0.6592 × 10-27 kg·m/s. This photon is emitted because the electron in the atom falls from a higher energy level into the n = 3 level. What is the quantum number of the level from which the electron fal..
in molecules of gaseous sodium chloride the chloride ion has one more electron than proton and the sodium ion has one
A 32.3cm diameter coil consists of 19turns of circular copper wire 2.00mm in diameter. Determine the current in the loop
What is it that makes the study of the structure of our owngalaxy more difficult than that of much more distant spiralgalaxies? The no-hair theorem states that black holes
q1. a conveyor belt at a quarry lifts 2000 kg of sand per minute up a vertical distance of 12 meters. the sand is at
A tennis player receives a shot with the ball of mass 0.060kg travelling horizontally at v=43 m/s and returns the shot with the ball travelling horizontally at 60.00 m/s in the opposite direction.
A 13.9-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 66.5-N horizontal force. determine the rope\'s angle from the vertical
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