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A 5-kg collar rests on but is not attached to the spring shown. It is observed that when the collar is pushed down 180 mm or more and released, it loses contact with the spring. Determine
(a) the spring constant,
(b) the position, velocity, and acceleration of the collar 0.16 s after it has been pushed down 180 mm and released.
A two-stage rocket moves in space at a constant velocity of +4920 m/s. What is the velocity (magnitude and direction) of the 2020-kg lower stage immediately after the explosion
A 14.6 kg block and a 29.2 kg block are resting on a horizontal surface. With what speed does each block move away with when the spring is released
A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 230keV. What was the energy of the photon
a simple harmonic oscillator of amplitude a has a total energy e. a determine the kinetic energy when the position is
consider an electron in the ground state of the hydrogen atom separated from the proton by a distance of 0.0529 nm.a
Huck Finn walks at a speed of 0.70 across his raft (that is, he walks perpendicular to the raft's motion relative to the shore). The raft is traveling down the Mississippi River at a speed of 1.50 relative to the river bank.
A thermodynamic system undergoes a process in which its internal energy decreases by 455 J. Find the energy transferred from it by heat
A Carnot engine has 40 g of helium gas as its working substance. It operates between two reservoirs of temperatures T1 = 400°C and T2 = 60°C. Calculate the heat absorbed and the waste heat ejected during one cycle
An object with a mass of m = 4.8 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.225 m, Determine the magnitude of the acceleration of the object
what is the angular momentum of a figure skater spinning at 4.5 revs with arms in close to her body assuming her to be
A rocket of total mass 3180Kg is traveling in outer space witha velocity of 115m/s. how much mass must be expelled
a 1.53-cm-high object is placed 20.0 cm in front of a concave mirror with a 4.26-cm focal length. what is the position
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