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A uniform rod of length L and mass m is suspended by two light strings, each of length l. Find the tension in the strings by drawing the FBD for the rod first. The drawing looks like a horizontal line(ceiling) with a isosceles triangle attached, the bottom of the triangle is L(rod).
At sea level, at latitude where, the pendulum that takes 2.00s for a complete swing back and forth has a length of 0.993m. What is the value of g in m/s2 at the location where the length of such a pendulum is 0.970m.
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm. What is the period of the oscillation
You're standing in waist-deep water with your eyes 0.48m above the surface. A fish is swimming 0.65m below the surface. How far (horizontally) from you is the fish
The isotope 12N undergoes radioactive decay to form 12C. What charged particle is emitted in the decay process
A charge of -270e is uniformly spread through the volume of a sphere of radius 2.10 cm. What is the volume charge density in that sphere
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -42 µC. by how much does her mass increase
A wave has a speed of 500.0 m/s and a wavelength of 4.9 m. What is the frequency of the wave? What is the period of the wave?
The electron and proton of a hydrogen atom are separated (on the average) by a distance of approximately 5.3 x 10-11 m, what is a fundamental difference between the two forces
Old naval ships fired 14 kg cannon balls from a 250 kg cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship. In one design, a large spring with spring constant 2..
A speeder is racing down the road at a constant speed of 90mi/h. A police officer is having coffee while the speeder zips past her. How Far down the road does the officer catch the speeder
A cylindrical space station of radius R and length L has a density that varies with distance from its center, Calculate the total mass M of the entire space station
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 65.3°. Find the dispersion of the slab
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