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A uniform 1.6 kilogram rod that is 0.61 meter long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have the same lengths when they are unscratched. Their spring constants are 56 N/m and 25 N/m. Obtain the angle that the rod makes with the horizontal.
The speed of an ion in a particle accelerator is doubled from 0.400c to 0.800c. Determine the final relativistic momentum of the ion
Some rear view mirrors produce images of cars behind you that are smaller than they would be if the mirror were flat. What is the mirrors radius of curvature if cars 25.0 m away appear 0.33 times their normal size?
The semiconducting compound InAs is widely used for infrared light emitting diodes (LED's). What is the frequency of light emitted by a InAs LED
Determine the amount of energy the reaction releases. Be sure to take into account the mass of the electrons associated with the neutral atoms.
A blob of putty of mass m = 75.0 gram falls from the ceiling and lands on the outer rim of a turntable of radius R = 15.0 centimeter, Find the post collision angular speed of the turntable-putty system
two workers hold a heavy pail. its mass is unknown. one worker exerts a 220n force at 137 degrees from vertical. the
A neutron moved through a 1 T field with a speed of 185849 m/s. The velocity of the neutron is perpendicular to the field. Calculate the magnetic force on the neutron
Radioactive strontium tends to concentrate in the bones of people who ingest it. find which is predominantly calcium in composition
A jackhammer causes a sound intensity of 95 bB at a point where a person is standing. What is the sound intensity level at the position of the listener
Waves travel along a 100-m length of string with a mass of 55 g, which is held taut by a tension of 75 N. What is the speed of the waves
A car traveling at 18 {rm m/s} runs out of gas while traveling up a 24.0^circ slope. How far up the hill will it coast before starting to roll back down.
A boat whose speed in still water is 1.70m/s, must cross a260-m-wide river and arrive at a point 110 m upstream from where itstarts. What is the speed of the rivers current
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