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Find the angle between the position vectors to the points (3, -4, 0) and (-2, 1, 0), and find the direction cosines of a vector perpendicular to both.
An insect 1.1 tall is placed 1.3 beyond the focal point of the objective lens of a compound microscope. The objective lens has a focal length of 17 , Where is the image formed by the objective lens
A crate of bananas with a mass of 50kg rest on a loading ramp that makes an angle theta = 30 degrees with the horizontal ground. What is the static friction force on the box to keep it from sliding
A metal sphere A has charge Q. Two other spheres, B and C, are identical to A except they have zero net charge. How much charge is on each sphere
An amplifier supplies 5.0 Watts to a perfectly efficient loudspeaker at one end of a 10.0 cm diamter tube filled with air. What is the intensity of the sound at the other end of the tube
Find the power factor for an RC circuit connected to a 80.0Hz generator with an rms voltage of 155V
A satellite circles a spherical planet of unknown mass in a circular orbit of radius 1.9 x 10^7 m. What would be the magnitude of the gravitational force exerted on the satellite by the planet if the radius of the orbit were increased to 3.6 x 10^7..
At what energy does an electron become "relativistic"? Consider electrons with kinetic energies of 50 eV, 50 keV, and 50 MeV. When is it important to use the relativistic formulas
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
Find the ground state energy of an electron confined to a 1 D box of length 0.1 nm. Show an energy level diagram showing the first 5 levels. Calculate the wavelengths of the photons corresponding to transitions between the third level and the ground ..
A projectile is shot from the edge of a cliff 115m above ground level with initial speed of 65m/s at an angle of 35 degrees with the horizontal.
A ray of light reflects from a plane mirror with an angle of incidence of 37. compute through what angle is the reflected ray rotated
A particle moving along the x axis in simple harmonic motion starts from its equilibrium position, the origin, at t = 0 and moves to the right. The amplitude of its motion is 1.70 cm and the frequency is 1.30 Hz.
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