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A small mailbag is released from a helicopter that is descending steadily at 2.12 m/s.
a) After 5.00 s, what is the speed of the mailbag?
v =_____ m/s
(b) How far is it below the helicopter?
d =______ m
(c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 2.12 m/s?
v =_______ m/s
d = ______m
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm; What are the fractions of muscle and fat in the leg
A sign for the local cheese shop is hung by two strings of length 0.25 meters at either end from a 4 meter long pole with a mass of 200 kg. what is the coefficient of static friction between the wall and the pole
A trough is 5 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x10 from x=1 to x=1. The trough is full of water. Find out the amount of work in foot-pounds required to empty the t..
A 1060-kg van, stopped at a traffic light, is hit directly in the rear by a 794-kg car traveling with a velocity of +3.90 m/s. determine the final velocity of the car and the van
An object is thrown vertically upward and has a speed of 20.0 m/s when it reaches two thirds of its maximum height above the launch point, determine The velocity of the object at maximum height
A 14,240N car is traveling along a highway at 95.0 kn/hr. If the driver immediately applies his breaks, what average force acted upon the car
A swimming pool has dimensions 26.0 m â?? 9.0 m and a flat bottom. The pool is filled to a depth of 1.70 m with fresh water. What is the force exerted by the water on each side
A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 671 m/s. The gun is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.029 m below the center. What is the horizontal distance betwee..
A 12.4??C particle with a mass of 2.70×10?5kg moves perpendicular to a 1.01T magnetic field in a circular path of radius 22.8m. How long will it take the particle to complete one orbit
A potter's wheel (a solid, uniform disk) of mass 6.0kg and radius 25cm spins about its central axis with an angular speed of the wheel is 15rpm. Find the new angular speed of the system
Three charges (q1 = 7.6 ?C, q2 = -4.7 ?C, and q3 = 1.1?C) are located at the vertices of an equilateral triangle with side d = 6.1 cm. q1 is on the bottom left, q2 is on the bottom right, and q3 is at the top.
A 55 g piece of aluminum at 21 °C is cooled to -196 °C by placing it in a large container of liquid nitrogen at that temperature. How much nitrogen is vaporized
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