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An airplane is sent on a rescue mission to help a stranded explorer near the South Pole. The plane cannot land, but instead drops a supply package of mass m = 58 kg while it is flying horizontally with a speed of vp = 116 m/s. The supply package drops onto a waiting sled that is initially at rest. After the package lands in the sled, the speed of the sled plus package is found to be 38 m/s. What is the mass of the sled?
At the low point in it swing, a pendulum bob with a mass of 0.46 kg has a velocity of 2.2 m/s. What is its kinetic energy at the low point
In the notes I stated that a moving charge will have an electric field. This electric field will produce a magnetic field that is out of phase with the electric field. What is the size of the net force that the positive charge will feel
An object moves with constant acceleration 3.55 m/s2 and over a time interval reaches a final velocity of 12.8 m/s. What is the distance it travels during this interval
A strong man is compressing a lightweight spring between two weights. One weight has a mass of 2.3 kg, the other a mass of 5.3 kg . He is holding the weights stationary, What is the speed of the heavier weight
a vacuum cleaner motor can be viewed as an inductor with an inductance of 200 mh. for a 60-hz ac voltage vrms 120
a doorframe is twice as tall as it is wide. there is a positive charge on the top left corner and an equal but negative
The angular velocity of a rotor in a centrifuge increase constantly from 420 rad/s to 1420 rad/s in 5.00 s. a) Determine the angular displacement through which the rotor turns. b) What is the angular acceleration?
a student standing on a train staiton observes that the pitch (frequency) of the train decreases from 888.8 Hz to 862.8 Hz, What is the speed of the train
A man in a boat is looking straight down at a fish in the water (n = 1.333) directly beneath him. The fish is looking straight up at the man. how far above its eyes does the man appear to be
A long, thin rod 5 m lies along the x axis, with its midpointat the origin. find the magnidude of the net torque applied to the rod
A rectangular coil in the plane of the page has dimensions a = 46.00 m and b = 80.00 m. A long wire that carries a current I = 4.50 A is placed directly above the coil. For what value of x is magnitude of flux through the coil a minimum.
Consider two blocks A and B, of mass mA and mB, coupled by a spring and resting on a horizontal frinctionless table. Describe the subsequent motion
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