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A stationary billard ball, with a mass of 0.17 kg, is struck by anidentical ball moving at 4.0 m/s. After the collision, the secondball moves 60.0 to the left of its original direction.The stationary ball moves 30.0 to the right of the moving ball'soriginal direction. What is the velocity of each ball after the collision?
On a workday the average decibel level of a busy street is 80 dB, with 100 cars passing a given point every minute. If the number of cars is reduced to 45 every minute on a weekend, what is the decibel level of the street.
a stationary orbit is done with a period equal to the time it takes the planet to revolve one time so that the satellite appears to remain at the same point in the sky all the time. Find the radius of a stationary orbit
A +5.0-?C charge is moved from a negative to a positive plate of a parallel plate capacitor. find the potential difference between the plates of this capacitor
A 27 cm long solenoid, 1.8 cm in diameter, is to produce a 0.28 T magnetic field at its center. If the maximum current is 5.7 A, how many turns must the solenoid have
under what limits does the field of a uniformly charged disk match the field of a uniformly charged infinite sheet? the
A ball is dropped from rest at the top of a 6.10 m tallbuilding, falls straight downward and collides inelastically withthe ground, and bounces back. How many bounces can the ball make and still reach a windowsill that is2.38 m above the ground
The person's feet compared to a similar vessel in her head?
A television station broadcast on a frequency of 89 MHz. Whatis the wavelength of the electromagnetic wave?(m) What is the length of the antenna
The magnetic flux through the closed loop placed horizontally increases according to the relation ?(B)=1+6t2+7t3, What is the magnitude of the emf induced in the loop
Suppose the decay constant of radioactive substance A is twice the decay constant of radioactive substance B. what's the half-life of substance A
An archaeologist found a fragment bone of animal. It has an activity per gram of carbon that is 25% that of an equivalent sample of carbon from a similar living animal
Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.
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