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Two particles execute simple harmonic motion of the same amplitudeand frequency along close parallel lines. They pass eachother moving in opposite directions each time their displacement ishalf their amplitude. What is their phase difference?
Three positive particles of charges 1 ?C, 2 ?C, 3 ?C, and 4 ?C, are located at the corners of a square of side 1 cm. Calculate the potential in the center of the square
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, Find the speed of sound in the gas
In a circus act at the Ringling Bros. and Barnum Bailey Circus, a human cannonball was fired from a large cannon with a muzzle speed of 87 km/h. How far from the cannon did he land
Two rivers, A and B, flow together to form a larger river C. If the flux (volume rate of flow) of river A is 300 gallons per second and the flux of river B is 200 gallons per second
A bag of cement weighing 275 N hangs in equilibrium from three wires as suggested in the figure below. Two of the wires make angles θ1 = 56.0° and θ2 = 42.0° with the horizontal. Assuming the system is in equilibrium, find the tensions T1, T2,..
A sample of 10.0 mCi decays 1.2% in a single day. What is the activity after 30 days?
A 20 kg uniform beam is placed on two supporting stands on either end. A 75 kg painter stands at 1.2 m from one of the ends. find the forces at the two supports
What are the displacement and velocity of the point on the cord. What is the magnitude of the acceleration of one of the liners toward the other because of their mutual gravitational attraction.
two identical blocks are stacked one on top of the other. the bottom block is free to slide across a frictionless surface. What is the maximum horizontal force that can be applied to the lower block without the upper block slipping
Assume that the reactor operates 80% of the time, that all the energy generates arises from the fission of 92U235 and that this nucleii is consumed only by the fission process.
A horizontal laser beam of wavelength 632.8 nm has a circular cross section 2.00 mm in diameter. Find the required width of the aperture
A Texas cockroach of mass 0.189 kg runs counterclockwise around the rim of a lazy Susan (a circular disk mounted on a vertical axle) that has a radius 10.2 cm, rotational inertia 3.61 x 10-3 kg·m2, and frictionless bearings.
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