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a 1.5 cm diameter suction cup is pressed to the ceiling. a 51kg weight hangs from the center of the cup by string neglect the mass of the suction cup and string. find the normal force on the suction cup.
A battleship simultaneously fires two shells toward two identical enemy ships. One shell hits ship A, which is close by, and the other hits ship B, which is farther away. The two shells are fired at the same speed. Assume that air resistance is negli..
Since the vehicles stick together after the collision and take the direction of the large truck (greater momentum), I guessed that the small car would have a greater change in kinetic energy.
Two waves traveling on a string in the same direction both have a frequency of 141 Hz, a wavelength of .43 m, and an amplitude of .16 m. What is the phase difference between the two waves
A two-slit pattern is viewed on a screen 1.17 m from the slits. What is the width of the central bright fringe, if the third dark fringes on either side are 26.4 cm apart?
You shine a laser on a plastic prism made from an unknown material and measure the angles relative to the normal that the light takes both inside and outside the medium. What is the index of refraction of the plastic object
A car crashes into a wall at 25 m/s and its contents are brought to rest in 0.1s. display that the average force exerted on a 75-kg test dummy by the seat belt is more than 18,000 N.
When released, the textbook slides on a horizontal tabletop with coefficient of kinetic friction k = 0.30. Use the work-energy theorem to find out how far the textbook moves from its initial position before coming to rest.
An electron moving at a speed of vi= 0.960c in the positivex direction collides with another electron at rest, Based only on the original data given in the problem, use conservation of energy to find the speed of the second electron
Slopping air track: A glider moves frictionlessly along an air track that has been tilted by 1.5 inches over a span of 1.00 meters. What is the expected acceleration of the glider
A large iron cylinder of mass 265 kg rests so that its circular face rolls along the edge of a table, How far has the system moved along the horizontal
A plane of a 5.0 cm x 8.0 cm rectangular loop of wire is parallel to a 0.19 T magnetic field. The loop carries a current of 6.2 A. What is the magnetic moment of the loop
A car initially traveling at speed 60 mi/h on a horizontal road comes to rest over a distance of 40 meters after the brakes are applied, What is the mass of the car
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