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If dot product & cross product of two vectors are same then find out the angle between them.
A charge of 24.5uC is located at (4.40m, 6.22m), and a charge of-11.2uC is located at (-4.50m, 6.75m). What charge must be locatedat (2.23m, -3.31m) if the electric potential is to be zero at theorigin?
wo stunt drivers drive directly toward each other. At time t=0 the two cars are a distance D apart, car 1 is at rest, At what time do the two cars collide
In a certain organic molecule, the nuclei of two carbon atoms areseparated by a distance of 0.35 \rm nm. What is the magnitude of the electric force between them ?
Find the work function of the emitting surface and the wavelength of the second source. Determine the net work done on the piano.
Consider NH3 vapor acting as a van der Waals gas with coefficients a = 4.169 atm-L2-mol-2 and b = 0.0371 L-mol-1. How much heat must be added to 50.0 g of the gas so that it experiences no change in internal energy as it undergoes isothermal reversib..
a 2kg mass ona horizontal frictionless surface is attached to the free end of an ideal spring of stiffness k=30N/m. by what distance is the spring compressed as the mass comes to rest again
a 4 kg box is pushed up a frictionless 30 degree incline with a force of 40n. this 40 n force is parallel to the
The potential at the center of a uniformly charged ring is 52 kV, and 15 cm together the ring axis the potential is 41 kV. Find the ring's radius and its total charge.
A person pushes a 12.3-kg shopping cart at a constant velocity for a distance of 16.5 m on a flat horizontal surface. calculate the work done by the pushing force
A Metra train is moving at a speed of 25.0 m/s. As it approaches astation its horn emits a sound of frequency 750. Hz. Calculate the frequency detected by a personstanding still at the station.
Two electric charges q1 = +10 ?C and q2 = -20 ?C are located 0.35 m apart. How much work is required to double the distance between the charges
Establish the Force required to raise a 25.50 kg object by 2 pulleys, the diameter of larger circular pulley is 12.0 cm and the smaller pulley is 8.5 cm.
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