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A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, answer the following questions.
(a) What is the speed of the mailbag?
(b) How far is it below the helicopter?
(c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 1.00 m/s?
A thin-walled hollow sphere with a mass of 22 kg is rolling without slipping. Its translational speed is 1.6 m/s. Determine the total kinetic energy of the rolling sphere
A machine part rotates at an angular speed of 0.48 rad/s; its speed is then increased to 2.8 rad/s at the angular acceleration of 0.61 rad/s2.
two plates of radius R are separated by a distance 2h.the top plate rotates with velocity w. find the velocity as a function of radius r and and height z
A 200 g block is pressed against a spring of force constant 1.40 kN/m until the block compresses the spring 10 cm. The spring rests at the bottom of a ramp inclined at 60.0 degrees to the horizontal.
A tank of water sits at the edge of a table of height 2m. The tank springs a very small leak at its base, and water sprays out a distance of 1.4 m from the edge of the table. What is the water level h in the tank? (Assume the tank is open to the a..
A golf ball is hit on a 7.2m tall hill at 23m/s and 30° above the horizontal, what is its velocity at the peak of its flight
You stand with your nose 5.0cm from the surface of a reflecting ball, and your nose's image appears three-quarters full size. What is the balls diameter?
A person stretches a rope of length 55 m between the top of a building to the base of a tree d = 23 m away. How tall is the building.
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1330 Hz. The bird-watcher, however, hears a frequency of 1410 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
What is ratio of the applied force
Calculate the direction, magnitude and line of action of the vertical and horizontal components of hydrostatic force acting on a surface.
For lead 82Pb206 (atomic mass = 205.974440 u) obtain the mass defect in atomic mass units
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