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Q. A 96 kg person stands on a scale in an elevator. What is the apparent weight when the elevator is accelerating upward with an acceleration of 1.80 m/s^2?
Q. A highway curve with radius = 274 is to be banked so that a car travelling = 25 will not skid sideways even in absence of friction. At what angle should the curve be banked?
Find the modulation index corresponding to the given trapezoidal pattern for the AM signal.
A person carries a long pole of mass 20 kg and length 3.4 m at the angle of 60 degrees. Find the magnitude of the torque on the pole due to gravity.
A locomotive is pulling a number of identical wagons along a level track and accelerating. Friction is negligible. Starting from the last wagon, the ratio of the forces between adjacent wagons is.
Biometric measurements indicate that each hand typically makes up about 1.25% of body weight. What horizontal force should her wrist exert on her hand.
Batman and Robin are attempting to escape that dastardly villain, the Joker, by hiding in a large pool of water (n=1.33). The Joker stands gloating at the edge of the pool.
A rectangular container measuring 22cm multiplied by 48cm multiplied by 72cm is filled with water. What is the mass of this volume of water in kilograms and grams.
What is amplitude of the subsequent oscillations
End A of the bar AB rests on a frictionless horizontal surface, and end B is hinged. A horizontal force vec F of magnitude 107 {rm N} is exerted on end A. You can ignore the weight of the bar. What is the vertical component of the force exerted by..
W hat is the magnitude of an average force exerted on the superball by the sidewalk. what is force caused by the water on the bottom.
A soprano saxophone is an open pipe. If all keys are closed, it is approximately 65 cm long. Using 343 m/s as the speed of sound, find the lowest frequency that can be played on the instrument.
A ball of mass 1.020 g and positive charge q =45.2 microC is suspended on a string of negligible mass in a uniform electric field. We view that the ball hangs at an angle of theta=15.0 from the vertical. What is the magnitude of the electric field.
Two water reservoirs are open to the atmosphere. The manometer contains mercury with the density of 13,600kg/m cubed. What is the difference in elevation if the manometer reading is 25cm.
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