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A diver with a mass of 79 kilogram reaches a maximum height of 5.8 meter above the water. When the diver has fallen 1.6 meter from the apex, find her kinetic energy (J)? Suppose horizontal velocity is zero.
A harmonic wave is traveling along a rope. It is observed that the oscillator that generates the wave completes 37.0 vibrations in 33.0 s. Also, a given maximum travels 424 cm along the rope in 12.0 s. What is the wavelength?
Near San Francisco, where the vertically downward component of the earth's magnetic field is 4.7 multiply.gif 10-5 T, Find the emf induced between the two sides of the car
a 10-cm-long thin glass rod uniformly charged to 9.00 and a 10-cm-long thin plastic rod uniformly charged to - 9.00are
A cycle wheel is rotating at 47rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.47 rad/s2. Find how many revolutions the wheel makes during this time
police radars determine speed by measuring the doppler shift of radio waves reflected by a moving vehicle. the do so by
A person with perfect pitch sits on a bus bench listening to the 450{\rm Hz} horn of an approaching car. how fast is the car moving
A proton (m = 1.7 × 10–27 kg, q = +1.6 ×10–19 C) starts from rest at point A and has a speed of 40km/s at point B. Only electric forces act on it through this motion. Decide the electric potential difference.
An ideal gas is expanded isothermally from 20L to 30L. During thismethod , 6J of energy is expended by the external mechanism that expanded the gas. Which of the statements is correct.
A jet airplane is in level flight. The mass of the airplane is m = 8830 kg. find the magnitude of the lift force acting on the plane
A catapult with a radial arm 4.19 m long accelerates a ball of mass 19.1 kg through a quarter circle. The ball leaves the apparatus at 41.6 m/s. Find the moment of inertia of the arm and ball
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.9 kg and the sign has a mass of ms = 15.4 kg. The length of the beam is L = 2.57 m. The sign is attached at the very end of the beam, but the horizontal wire h..
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
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