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In an experiment designed to measure the speed of light, alaser is aimed at a mirror that is 44.0 km due north. A detector isplaced 129 m due east of the laser. The mirror is to be aligned sothat light from the laser refelects into the detector. (a) When properly aligned, what angle should thenormal to the surface of the mirror make with due south?(b) Suppose the mirror is misaligned, so that theactual angle between the normal to the surface and due south is toolarge by 0.0050°. By how many meters (due east) will the reflected ray miss the detector?
A charge of -5.8 micro-Coulombs is placed at x = 0, y = 0. A charge of +17.1 micro-Coulombs is placed at x = 0, y = +36 cm. Another charge of +34.8 micro-Coulombs is placed at x = +33 cm, y = 0 cm. What is the magnitude of the total electric force..
An L-R-C series circuit has C=4.80*10^-6F, L= 0.500H, and source voltage amplitude V= 54.5V. The source is operated at the resonance frequency of the circuit. If the voltage across the capacitor has amplitude 77.5V, what is the value of R for the res..
A girl walks 26 meters at an angle of 39° west of south. How far west of her starting point is she
A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520 nm. A very wide viewing screen is 2.1 m behind the grating. What is the distance between the two m= 1 fringes? Use two significant figures
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 265 kg · m2, What is the new angular speed of the merry-go-round
Determine the magnitude of the force on an electron traveling 7.85×105m/s horizontally to the east in a vertically upward magnetic field of strength 0.44T
The four strings pass over the bridge of a violin, as shown below. The strings make and angle of 72.0° with the normal to the plane of the instrument on either side of the bridge. Determine the tension in the strings
A sphere of radius R = 0.325 m and uniform charge density -151 nC/m3 lies at the center of a spherical, find the magnitude of the electric field at the following radial distances from the center of the charge distribution
A planet of mass 7*10^24 is at location m A star of mass 8*10^30 is at location m. What is the force exerted on the planet by the star ?
A ball rolls down a board which is 20 degrees to the horizontal. This time there is a coefficient of kinetic friction of 0.1. What is its speed at the bottom of the board
A force F applied to an object of mass m1 produces the acceleration of 3.10 m/s2. The same force applied to a second object of mass m2 produces an acceleration of 1.90 m/s2.
a ball with mass 1kg is dropped from a height of 6m. the ball is caught by a person 2m above the ground. calculate the potential energy of the ball relative to the ground
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