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When a mass m is attached to a vertical spring with a force constant k, it stretches the spring by the amount L.
A chamber sealed with a moveable piston contains 5.50 litres of hydrogen at 28 degrees C and 81.3 kPa.
A wire loops of radius 0.30 miles so that an external magnetic field of magnitude 0.40 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 2.0 s. discover the magnitude of the average induced emf i..
A model rocket is launched straight upward with the initial speed of 70m/s. It accelerates with a constant upward acceleration of 3 m/s2 until its engines stop at an altitude of 180 m.
If so evaluate their acceleraton and the tension in the string. If not determine the sum of the magnitudes of the forces of friction acting on the blocks.
A cylindrical shell of length 220 m and radius 7 cm carries a uniform surface charge density of 13 nC/m2. Find the electric field at the ends of the following radial distances from the long axis of the cylinder
A crate pushed along the floor with velocity slides a distance after the pushing force is removed. what distance does the crate slide before stopping
A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. determine how fast will the water be traveling when it leaves the pump after it has been accelerating for 9.00 sec
Two cars with equal mass collide head on. One car is going 18 mph. That car is push backward about 38 feet. What is the speed of other vehicle.
What are vertical and horizontal components of the ball's momentum immediately after striking the crossbar. what is an average acceleration of the ball during this time interval.
A person is riding a bicycle, and its wheels have an angularvelocity of 27.6 rad/s. Then, the brakes are applied and the bikeis brought to a uniform stop. During braking, the angular displacement of each wheel is 13.2revolutions.
Alcohol consumption slows people\'s reaction times. In a controlled government test, it takes a certain driver 0.39 s to hit the brakes in a crisis when unimpaired and 1.19 s when drunk. how much farther does the car travel
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
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