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A standing wave has been created on a string of length 1.5m. The frequency of the wave is 25Hz. The ends of the string are nodal points and there are 3 antinodes. If the maximum amplitude of the wave is 5cm, write complete expressions, including values for k and ?, for the generated wave traveling to the right and the reflected wave traveling left. Take right as the + xˆ direction.
The attractive electrostatic force between the point charges 7.14×10?6 and has a magnitude of 0.825, find the sign and magnitude of the charge Q
You wish to replace the flooring in your kitchen with square linoleum tiles that measure 12 inches on a side. how many such tiles will you need to buy
The masses of astronauts are monitored during long stays in orbit, such as when visiting a space station. What is the mass of an astronaut who has an oscillation period of 2.00 s when in the chair
A 10 m beam of mass 330 kg extends over a ledge. The beam is not attached, but simply rests on surface. A 53 kg student intends to position the beam so that he can walk to the end of it. How far from the edge of the ledge can the beam extend.
The beam emerging from a ruby laser (wavelength 694.3 nm) passes through a circular aperture 6.2 mm in diameter. what is the angular spread of the beam
Suppose you hear a clap of thunder 17.2 s after seeing the associated lightning strike. How far are you from the lightning strike
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 2.2 cubic meters of sea water. What is the buoyant force acting on the object in newtons
in a headon collision (without friction) a 4000 kg truck going 10m/s due east strikes a 2000kg car gong 40m/s west, what direction do they roll in
Explain how much waork has been done against gravity when the crate is raised a vertical distance of 2.19 m? The coefficient of friction is 0.316.
A magnetic field of magnitude 0.38 T is directed vertically upward, Find the magnetic flux through a flat surface of area 22 cm2 if the surface is horizontal
A light spring with a force constant of 13N/m is connected to a wall and a 1.2-kg toy bulldozer. When the electric motor in the bulldozer is turned on, What is the numerical value of this coefficient of friction
At the surface of the Earth, the Sun delivers an estimated 1.43 kW/m2 of energy. Suppose sunlight hits a 16.3 m by 33.3 m roof at an angle of 90.0°. Estimate the total power incident on the roof
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