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Determine the speed, wavelength, and frequency of light from a helium-neon laser as it travels through plexiglas. The wavelength of the light from the laser is 632.8 nm in air and the index of refraction of plexiglas is 1.510.
Four identical particles, each with mass m = 10-6 kg and charge Q = 10-6 C, are initially at the four corners of a square with side-length a = 0.01 m. what is the final speed of the released particle once it is very far away
A meter stick (L = 1 meter) has a mass of m = 0.154 kilogram. Initially it hangs from two short strings: one at the 25 centimeter mark and one at the 75 centimeter mark. Obtain the tension in the string when the meter stick is vertical
Starting from rest, a speedboat reaches a speed of 2.30 m/s in 1.2 s. What is the boat's speed after an additional 2.50 s has elapsed, assuming the boat's acceleration remains the same.
A steel cable with a total length of 27.7 m and total mass of 91 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
A wooden raft has a mass of 55 kg. When empty it floats in water (density 100 kg/m^3 with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking
The magnitude of the force of friction acting on the block between A and is 1.2N and points A and B are 0.5 m apart. If the kinectic energies of the block at A and B are 4J and 5.6 J, respectively, how much work is done on the block by the force p..
A helicopter propeller blade starts from rest and experiences aconstant angular acceleration of 18.0rad/s2. Find the speed of a point on the blade3.40 m from the axis of rotation when the blade has completed 13 revolutions.
A small glass bead has been charged to +30.0nC. What is the charge on the ball bearing
A particle in a 721 m-long particle accelerator is moving at 0.875 c. How long does the particle accelerator appear to the particle
Four identical charges (+2uC each) are brought from infinity and fixed to a straight line. The charges are located .4 m apart. Determine the electric potential energy of this group.
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and her takeoff point is 1.50 m above the pool. What is her velocity when her feet hit the water
A muscle-tendon unit is composed of a tendon with a stiffness of 6640N/m, a muscle with a stiffness of 9070N/m, What is the stiffness of the muscle-tendon unit
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