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The mass of a mass and spring system is displaced 10 cm from its equilibrium position and released. A frequency of 4.0 Hz is observed. What frequency would be observed if the mass had been displaced with only 4.0 cm and then released?
the leyden jar invented by chance in 1746 was one of the earliest types of capacitors see the figure below made by
The electric field of an electromagnetic wave in a vacuum isEy = (17.0 V/m)cos((6.28 ×108)x??t), where x is in m and t is in s. What is the wave's magnetic field amplitude
A lamp which is 9.0 cm tall is in front of a concave mirror which has a focal length of 53.0 cm. (a) How tall is the lamp's image if the lamp is a distance of 26.5 cm from the mirror (include sign if negative)
The radioactive hydrogen isotope 3H is calledtritium. It has beta-minus decay and a daughter necleus of 3He. What is the time constant for tritium
A daredevil is shot out of cannon at 41.1o to the horizontal with an initial speed of 26.1 m/s. Find at what height above cannon should the net be placed
A thin rod of length 0.89 m and mass 110 g is suspended freely from one end. It is pulled to one side and then allowed to swing like a pendulum, how far above that position the center of mass rises
A 1500 car traveling at 11 suddenly runs out of gas while approaching the valley shown in the figure. The alert driver immediately puts the car in neutral so that it will roll. What will be the car’s speed as it coasts into the gas station on the oth..
An 8.68-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 26.3° with the horizontal. find the distance the block slides before coming to rest
A uniform plank, 10.0 m long and weighing 200 N, is supported horizontally by a brick at one end and an egg at the other. What is the force exerted on the plank by the brick
A 2.40-m-long string is under 29.0 N of tension. A pulse travels the length of the string in 60.0 ms. What is the mass of the string?
Far in space, where gravity is negligible, a 480-kg rocket travelling at 95 m/s fires its engines. The figure shows the thrust force as a function of time. The mass lost by the rocket all through these 30s is negligible.
what is the volume of an iron atom. What is the ratio of the mass density of girder A to the mass density of girder B.
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