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A block of mass m = 0.80 kg slides along a horizontal table with speed v0 = 5.50 m/s. At x = 0 it hits a spring with spring constant k = 45.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by ? = 0.250. How far did the spring compress when the block first momentarily comes to rest?
A boxer receives a horizontal blow to the head that topples him over. How long would it take him to hit the floor if he continued with the same angular velocity
A person on a rocket traveling at 0.50c (with respect to the Earth) observes a meteor come from behind and pass her at a speed she measures as 0.50c
A 550 -cm flask contains 0.450grams of a gas at a pressure of 140kPa, What is the molecular mass of this gas
At some distance from a point charge, the electric potential is 618.0 V and the magni- tude of the electric field is 160.0 N/C. Determine the distance from the charge
An air-filled toroidal solenoid has a mean radius of 13.0 cm and a cross-sectional area of 5.80cm^2. How many turns does the winding have
An L-R-C series circuit is connected to a120?Hz ac source that has vrms = 80.0V. What average power is delivered to the circuit by the source
(a) Calculate the lowest energy of the electron in He+. Is it lower than that of H.(b) If this electron absorbs a photon and makes a transition to the 2p orbital, what is the frequency of the absorbed photon
An oscillatory water wave has a period of 2.56 seconds and a wavelength of 7.12 cm. What is the angular frequence
An airplane is flying with a velocity of 93at an angle of 25 above the horizontal. When the plane is a distance 103 directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment.
What is the approximate mass of an object whose weight equals the force in part (b).
A fireworks rocket explodes at a height of 100 m above the ground. What is the total sound energy of the explosion
A taut rope has a mass of 0.160 kg and a length of 3.40 m. What power must be supplied to the rope in order to generate sinusoidal waves having an amplitude of 0.120 m and a wavelength of 0.490 m and traveling with a speed of 31.5 m/s?
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