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A light, rigid rod is 59 centimeter long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity thus that it swings around in a full circle. Find what minimum speed at the bottom is required to make the ball go over the top of the circle?
A satellite operates at an altitude of 20,200 km and utilizes communication frequencies of1575.42 MHz. Discover the gravitational frequency change with respect to Earth.
A fireman d = 49.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of ?i = 27.0° above the horizontal, at what height will the stream of water strike the building
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, thus that an emf of 0.57 V and a current of 5.7 A are induced in the coil.
The distance from the lens system (cornea + lens) of a particular eye to the retina is 1.75 cm. What is the focal length of the lens system when the eye produces a clear image of an object 27.0 cm away?
Fully stripped (all electrons removed) oxygen (16O) ions are accelerated from rest in a particle accelerator using a total potential difference of 10.0 MV. What is the total power the beam dump has to absorb
q1. a 60.0 kg pole vaulter running at 12.0 ms vaults over the bar. assume that the vaulters horizontal component of
Glycerine in water diffuses along a horizontal column that has a cross-sectional area of 1.9 cm2. The concentration gradient is 2.8 10-2 kg/m4, Determine the diffusion coefficient
a 2.97-kg projectile is fired with an initial speed of 133 ms at an angle of 28deg with the horizontal. at the top of
A Carnot engine operating with an ideal gas takes heat energy from the hot reservoir at 500 degrees C and exhausts heat energy to the cold reservoir at 250 degrees C. If the engine does 400J of work per cycle, what is its efficiency.
A drunk driver in a 1700 kg car plows into a 1300 kg parked car with its brake set. how fast was the drunk going just before the collision
A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).
Consult to explore a model for solving this problem. A person pushes on a 55-kg refrigerator with a horizontal force of -280 N; What is the magnitude of the largest pushing force
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