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Q. A flight attendant pulls her 72-N flight bag a distance of 265-m along a level airport floor at a constant velocity. The force she exerts is 44-N at an angle of 57° above the horizontal.
Find out the coefficient of kinetic friction between flight bag and floor.
The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.0 g/cm.
Two long thin parallel wires 13.0 cm apart carry 32 A currents in the same direction. Determine the magnetic field at point P, 12.0 cm from one wire and 5.0 cm from the other.
In a television tube, electrons originally at rest are accelerated by a uniform electric field of magnitude 4 times 105N/C during the first 5cm of the tube's length; after that they move at essentially constant velocity another 45cm before hitting..
Determine the resolution limit set by diffraction . what average force do you need to apply to stop the sled? Utilize the concepts of impulse and momentum.
A bumper car with mass m1 = 115kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 95 kg is moving to the left with a velocity of v2 = -3.7 m/s. The two cars have an elastic collision. Suppose the surface is fr..
What is the least speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track
Ice at -13.7 °C and steam at 114 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 43.3 °C is present. Ignoring container and equilibrium vapour pressure of t..
What is braking distance for the first train
A 115 granite cube slides down a 35 frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest.
A floodlight with a mass of 46.00 kg is used to clarify the parking lot in front of a library. The floodlight is supported at the end of horizontal beam that is hinged to a vertical pole. A cable that makes an angle of 29 degrees with the beam is att..
What is the maximum displacement of the bridge deck?
The bunchberry flower has the fastest-moving parts ever seen in a plant.at first , the stamen are held by the petals in a bent position, storing elastic energy like a coiled spring.
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