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A .50 kg block attached to an ideal spring by a spring constant of 80 N/m oscillates on a horizontal frictionless surface. When the spring is 4.0 cm longer than its equilibrium length, the speed of the block is .50 m/s. The greatest speed of the block is:
Water at a gauge pressure of 3.8 atm at street level flows into an office building at a speed of 0.45 m/s through a pipe 4.2 cm in diameter.Calculate the flow velocity in such a pipe on the top floor
A series RLC ac circuit has a capacitive reactance of 55 ?, and inductive reactance of 25 ?, and a resistance of 40 ?. What is the phase angle of this circuit
Two cars travel in the same direction along a straight highway, How far must the faster car travel before it has a 15-min lead on the slower car
A 9.40kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 69.5kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
you have 15 m of wire a constant magnetic field of 0.35 t and a device that can rotate a coil at a fixed frequency of
An object undergoes simple harmonic motion with a period of 0.015 s, and an amplitude of 1.2E-2 m. What's the fastest the object travels during its motion
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. calcultae the velocity of the target ball after the collision
a 2.0kg projectile if fired with initial velocity components Vox= 30 m/s and Voy= 40 m/s from a point on the earth's surface. What is the kinetic energy of the projectile
The New England Merchants Bank Building in Boston is 152 m high. What is the total distance, side to side, that the top of the building moves during such an oscillation
A 1.0 object is released from rest 500km above the earth. By what percentage is the flat-earth calculation in error
A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's years. The speed of the planet around that sun is constant and |v|=49600 m/s
How much current is contained within the width of a thin ring concentric with the wire if the ring has the radial width of 12.0 µm and is at a radial distance of 1.2 mm.
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