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A ball is dropped from a helicopter which is descending at 1.5 meter per second. After 2 sec:
a) Determine the velocity of the ball?
b) Determine how far is the ball below the helicopter?
A boxed 11.0 computer monitor is dragged by friction 7.50 up along the moving surface of a conveyor belt inclined at an angle of 36.8 above the horizontal. how much work is done on the monitor by friction
Two men decide to use their cars to pull a truck stuck in mud. What is the net forward force exerted on the truck in the direction it is headed
A 0.48-kg object connected to a light spring with a force constant of 23.6 N/m oscillates on a frictionless horizontal surface. The spring is compressed 4.0 cm and released from rest.
In 2.8 days the number of radioactive nuclei decreases to one-eighth the number present initially
A charge of q = +7.50 µC is located in an electric field. The x and y components of the electric field are Ex = 4.80 103 N/C and Ey = 7.40 103 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that th..
charges of 4.0 microc and -6.0 microc are placed at two corners of an equilateral triangle with sides of 0.10 m. at the
a certain particle is sent into a uniform magnetic field with the particles velocity vector perpendicular to the
Compute the kinetic and potential energies of an airplane weighing 5.00 tons flying at a height of 30.0 × 103 ft at 500. mph. Give answer in both SI and Engineering English units. Assume standard gravity.
Consider a homemade capacitor, which consists of 2 8.5" x 11" aluminum foil sheets separated by 10 sheets of paper. Estimate the capacitance of this device. What effect does the paper have on the capacitance
You find a pirate map which describes the path to a buried treasure. Starting from an old oak tree in a field, How far away from the base of the oak tree and in what direction is the treasure buried
a 15 m long string of mass 1.8 kg is streched such that the tension in the string is 25 n. a wave of frequency 20 hz is
What is the phase difference in a Young's double slit experiment where the intensity is half that of the central maximum
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