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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?
Particle A carries a charge of 5.0 uC, Particle B is 12.0cm, Find the magnitude and direction of the electric force on A due to B
A 4.25-kg watermelon is dropped fromrest from the roof of a 20.5-m-tallbuilding and feels no appreciable air resistance.
A sledge loaded with bricks has a total mass of 17.4 kg and is pulled at constant speed by a rope inclined at 20.4° above the horizontal. How much work is done by the rope on the sledge
Ice cubes and water are in equilibrium at -2 degrees Celsius. Ice cubes float with (4/5) their volume submereged in water at the triple point at .01 degrees Celsius, 612 Pascals. The latent heat of sublimation of ice at the triple point is 277600..
Suppose you have a concave spherical mirror with a focallength of 10 cm. What is the radius of curvature of the mirror
A large circus ride has a centripetal acceleration at 6.0 m/s2. If the circular ride has a radius of 11.0 m, what is its velocity at the edge
a device with a resistance of 200.0k is connected to a 10v battery. how much power does the device use?a 0.050 mwb 0.50
A person drives north at 25 m/s for 10 min. west at 10 m/s for 15min and 20 m/s for 5 min. on a road that is at an angle of 30° south of east. What is the displacement for each part of the drive
The mass of a certain planet is 3.00 multiply.gif 1026 kg. What is the mean orbital radius of this second moon
At an instant when a soccer ball is in contact by the foot of a player kicking it, the horizontal or x component of the ball's acceleration is 730 m/s2 and the vertical or y component of its acceleration is 1050 m/s2. The ball's mass is 0.41 kg. What..
A block is placed at the end of the frictionless ramp and is pulled up the ramp through a solid ball on the end of a string that passes over a frictionless pulley that does not affect the motion of the block or ball. The ramp is 3.40 meters long and ..
A microphone is moving in air towards a stationary source of sound. The detected frequency is 106 Hz greater than the emitted frequency. What is the speed of sound in the unkown liquid
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