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A hot-air balloonist, rising vertically with a constant velocity of magnitude v= 5.00 m/s, releases a sandbag at an instant when the balloon is a height h= 40.0 m above the ground . After it is released, the sandbag is in free fall. For the questions that follow, take the origin of the coordinate system used for measuring displacements to be at the ground, and upward displacements to be positive. Take the free fall acceleration to be g= 9.80 m/s^2.
1. With what magnitude of velocity does it strike?
A rocket ship at rest in space gives a short blast of its engine, firing 90 kg of exhaust gas out the back end with an average velocity of 700 m/s.
What is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 2.0 mT
A pilot claims to have seen a UFO moving initially at the speed of about 440 m/s in an easterly direction and then, in a tie interval of only 1.0s turning 45 degrees and moving souutheast at 440 m/s
What is tension in the cord
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Two small particles have charges Q1 = +2.5 ?C and Q2 = ?5.5 ?C. what is the distance between the particles
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A spaceship of mass 2.30×106kg is cruising at a speed of 5.30×106m/s when the antimatter reactor fails, What is the speed of the third piece
A long pipe of outer radius 3.10 cm and inner radius 2.64 cm carries a uniform charge density of 3.22 mC/m3. calculate the electric field r = 6.51 cm from the centerline of the pipe
A pyramid has a square base and four faces which are equilateral triangles. A charge Q is placed on the center of the base of the pyramid, What is the net flux of electric field
Suppose a cylinder is resting on a horizontal platform on plane x-y with its axis parallel to the y axis, What is the motion (acceleration:linear as well as rotational) of the cylinder
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