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An 790 kg roller-coaster car is launched from a giantspring of constant 35 Kn/m into a frictionless loop-the-looptrack of radius 5.5 m. What is the minimum amount that the spring must be compressed if the car is to stay on the track?
A diver of mass 68 kg stands at the end of a uniform diving board of mass 16 kg and length 4:5 m, Calculate the magnitudes of the forces exerted by the pedestals on the diving board
even as Jo moves off in the opposite direction at a speed of 1.27m/s. assuming that friction is negligible, find out Al's mass.
How does the force on the layer compare with gravitational force on the layer if the layer has a radius of 100 solar radii, and a mass of .1 solar mass and the rest of the star has a mass of 1 solar mass
A circuit consists of a 12.0- battery connected to three resistors (40 , 16 and 120 ) in series. Find the current that flows through the battery
A spring oscillator is designed with a mass of 0.132 kg. It operates while immersed in a damping fluid, Find the required damping constant for the system
If the electric field is zero in some region of space, the electric potential must also be zero in that region. If the electric potential is zero at a point, the electric field must also be zero at that point. Electric field lines always point towar..
A 4.00-kg model rocket is launched, expelling 54.9 g of burned fuel from its exhaust at a speed of 690 m/s. What is the velocity of the rocket after fuel has burned.
A spear fisherman is using m a laser rifle, he is standing in a stream 0.5m deep, if the laserstruck the water 5m out from the fisherman, how far was his feet from the fish
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.839 A) sin [(204 Hz)t]
A cylinder with a movable piston contains gas at a temperature of 27°C, a volume of 1.5 m³, and an absolute pressure of 20,000 Pa. What will be the final temperature if the gas is compressed 2.7 m³ and the absolute pressure increases to 80,000 Pa.
Consider the NaCl molecule, for which the moment of inertia is 1.30 x 10-45 kg·m2. what are the allowed Raman-scattered wavelengths
A certain centrifuge produces a centripetal acceleration of magnitude exactly 1220g at a point 11.7 cm from the axis of rotation. Find the number of revolutions per second
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