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While arguing against my friend today about the turbulence appearing between train's wheels. I told that the train pushes air aside during its motion through the tracks. But, he rejected it. Then, what's happening in air (other than air drag) when a fast moving heavy object slices through it?
How does the motion of air look like in there?
A 5.00*10^-4 C charged mass (1.00g) is thrown upwards at a speed of 20.0 m/s and it is observed that it has gone up a distance of 15m it is moving at only 10.0 m/s, what is the electric potential at 15 m up
a light wave has a 670 nm wavelength in air. its wavelength in a transparent solid is 416 nm. a what is the speed of
Two identical clocks are set to 12 noon time when on the ground at rest relative to the ground. What will the moving clock read if the first clock reads 6 pm
While leaning out a window that is 5.5 m above the ground, you drop a 0.60-kg basketball to a friend at ground level. determine the amount of work done by the force of gravity
A 6.0-kg block initially at rest is pulled to the right along a frictionless, horizontal surface by a constant horizontal force of 12 N. find the blocks speed after it has moved
A very small 51 gram steel ball is released from rest and falls vertically onto a steel plate. Obtain the magnitude of the average force exerted on the ball by the plate during contact with the plate
On a seesaw, a 28-kg child sits 2.8 m from the pivot point. Where should a 38-kg child sit to put the center of mass at the pivot
It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. What is the rate at which this work is done by the electric organs during a pulse
A horizontal compass is place 25 cm due south from a straight vertical wire carrying a 17A current downward. In what direction does the needle point at this location? assume the horizontal component of the Earth's field at this point is 45uT. Solve u..
An L-R-C series circuit is connected to a120?Hz ac source that has vrms = 80.0V. What average power is delivered to the circuit by the source
The electric field between the plates of a parallel plate capacitor is horizontal, uniform, and has a magnitude of 3.5*10^4 N/C. What is the angle made by the thread with the vertical axis
A styrofoam box used to keep drinks cold at picnic has total wall area(including the lid) of 0.80m2 and wall thickness 2 cm. it is filled with ice, water and cans at 0 Celsius. What is the rate of heat flow into the box if temperature of the outsi..
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