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Problem: Two beams of coherent light are shining on the same piece of white paper. With respect to the crests and troughs of such waves, where darkness will occur on the paper?
Please show each step in detail for help and keep answer short and simple.
A 50 kg sled is subject to a net force of 20 N pushing in the direction of the sled motion as it is moving over a horizontal surface for a distance of 11 m after having started from rest. find the work done by friction while the sled is on the incl..
A roller coaster shown below is built in your town. The radius of the circular part is 20 meters. As a physics student, you are invited to take the first ride. Find the speed of the car at the top of the circle
On a frictionless table, a glob of clay of mass 0.24 kg strikes a bar of mass 1.34kg perpendicularly at a point 0.38m from the center of the bar and sticks to it. If the bar is 1.14 m long and the clay is moving.
A block of mass 2.0 kg is pushed against a vertical wall by a horizontal push (P) of 50.0 N. The block does NOT move. Assuming that the coefficient of the static friction, k, is equal to 0.60. Find the force AND the direction of the friction.
A tow truck pulls a car 5.00 \rm km along a horizontal roadway using a cable having a tension of 850 \rm N. How much work does the cable do on the car if it pulls horizontally
IO is a moon of jupiter, with a mass M= 8.9X10^22 kg, and radius of 1820Km. What period will this satellite have
A possible means for making an airplane invisible to radar is to coat the plane with an antireflective polymer. If radar waves have a wavelength of 2.80 cm and the index of refraction of the polymer is n = 1.30, how thick would you build the coating?
On a frictionless surface, a sliding box collides and sticks to a second identical box that is initially at rest. What percentage of the initial kinetic energy of the system
Three equal point charges, each with charge 1.25 , are placed at the vertices of an equilateral triangle whose sides are of length 0.400. What is the electric potential energy of the system
Two sinusoidal waves traveling in opposite directions interfere to produce a standing wave with the wave function y = (1.00) sin(0.800x) cos(300t), Determine the wavelength of the interfering waves
A charging bull elephant with a mass of 5240 kg comes directly toward you with a speed of 4.55m/s. You toss a 0.150 kg rubber ballat the elephant with a speed of 7.81 m/s.
A charge of -2.450?C is located at (2.650m , 4.502m ), and a charge of 1.745?C is located at (-2.796m , 0). Find the electric potential at the origin
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