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A .1 kg meterstick is supported at its .4m mark by a stringattached to the ceiling. A .7 kg mass hangs vertically from the.05m mark. A mass is attached somewhere on the meterstick to keepit in both horizontal and rotational and translational equilibrium. If the force applied by the string attcached to the ceiling is 19.6 N, determine the following,
a) the value of the unknown massb) the point where the mass atttaches to the stick
a physics professor did daredevil stunts in his spare time. his last stunt was an attempt to jump across a river on a
10-nC point charge is located at the center of a thin spherical shell of radius 8.0 cm carrying -20 nC distributed uniformly over its surface. What is the magnitude of the electric field 2.0 cm from the point charge
What are sunspots and how are they related to the Sun's magnetic field? Is the magnetic field stronger weaker in sunspots? How does the temperature in a sunspot relate to the temperature in the rest of the photosphere.
a 15mw energy laser has a beam exit diameter of 2cm and beam divergence of 0.0002radians.anbspnbspcalculate the power
Light enters the aperture of your AN/PVS-15 Night Vision Goggles at an incident angle of 32 degrees, What is the index of refraction of your objective lens
a find the resistance that must be placed in series with a 10.0 galvanometer having a 125 acircmicroa sensitivity to
A laser emits 1.00 x10^20 photons/sec. The laser has a wavelength of 473 nm. What is the power output of the laser
A microphone is located on the line connecting two speakers that are 0.514 m apart and oscillating 180° out of phase. The microphone is 2.17 m from the midpoint of the two speakers.
A suitcase is pulled by a tether that makes a 60 degree angle with the horizontal. what is the magnitude of the pull
A toaster operating on 120 V uses a current of 15.0 A. What is the toaster's power consumption, what is the cost of using the toaster for 3.2 min
A cylinder (I = MR^2/2) is rolling along the ground at 7m/s. It comes to a hill and starts going up. Assume no losses to friction, how high does it get before it stops.
A worker on the roof of a house drops his 0.55 kg hammer, which slides down the roof at constant speed of 4.93m/s. What is the horizontal distance traveled by the hammer from the time it leaves the roof to the time it hits the ground
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