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When a 9.86 kilogram mass is located on top of a vertical spring, the spring compresses 4.31 centimeter. Determine the force constant of the spring?
A police car with a frequency of 1600 Hertz is following the getaway car. Both are traveling 25 m/s in the similar direction. Find what frequency will the bank robbers hear
The angular position of a point on the rim of a rotating wheel is given by ? = 7.68t - 5.13t2 + 1.73t3, where ? is in radians and t is in seconds. find the angular velocities at the end of this time interval
A 563 kg car moving at 19.7 m/s hits from behind another car moving at 14.6 m/s in the same direction. what is the velocity of the first car after the collision
The flow rate of blood through the average human aorta, of radius 1.0 cm, is about 90 cm^3/s. What is the speed of the blood flow through the aorta
a 20-kg package is at rest on an incline when a force p is applied to it. determine the magnitude of p if 10 s is
A heavy-duty stapling gun uses a 0.168 kg metal rod that rams against the staple to eject it. find the speed of the ram at the instant of contact
An aluminum rod is clamped one quarter of the way along its length and set into longitudinal vibration by a variable-frequency driving source. obtain the length of the rod
The two wires of length 2m are 3mm apart and carry a current of 10 A dc. Calculate the force between these wires
A 45.0 kilogram schoolgirl is standing on a 135 kilogram plank. The plank is originally at rest, is free to slide on a frozen lake, which is a flat, frictionless surface. Compute her velocity relative to the surface of ice
two blocks with masses m1 4.6kg and m2 3.8 kg are connected by a light spring on a horizontal frictionless table. at
A hydrogen atom, initially at rest, has its electron in then = 4 state. The electron then makes a transition to the ground state, and the atom emits a photon in the process. What is the recoil speed of the hydrogen atom?
Calculate the Q-value, recoil energy of the daughter nucleus and the kinetic energy of the alpha particle in the following alpha decays
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