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A beam of light traveling in air strikes a slab of transparent material. The incident beam makes an angle of 40 degree with the normal, and the refracted beam make an angle of 26 degree with the normal. Obtain the speed of light in the transparent material? (c = 3.0 x 108 m/s)
a ball is attached to a center post by a string that is 0.378 m long. the ball is moving in a circle on a frictionless
A ball is tossed from an upper-story window ofa building. The ball is given an initial velocity of 8.10m/s at an angle of 19 degrees below the horizontal. It strikes the ground 6.00 s later.
An object has a total energy of 5.0 x 10^15 J and a kinecticenergy of 2.0 x 10^15 J. What is the magnitude of the object's relativitic momentum
The current in a coil drops from 4.1 A to 2.4 A in 0.49 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
A copper wire is 6.00 m long and has a cross-sectional area of 1.00 multiplied by 10-4 m2. what is the maximum torque that can act on it
Consider a piece of an n-type semiconductor 15 cm long. 0.7 cm wide, and 1.5 mm (hick. If we apply a 0.35 V voltage across the length, we find that the material conducts a current of 15 mA. If we then put it in a magnetic Held of 1.2 Tesla paralle..
A 5.05-kg ball of clay is thrown downward from a height of 2.77 m with a speed of 4.61 m/s onto a spring with k = 1730 N/m. Find the total work done on the clay during the spring's compression
q1. a flight attendant pulls her 70.0 n flight bag a distance of 274 m along a level airport floor at a constant speed.
a vector has an x component of -21.5 units and a y component of 41.5 units. find the magnitude and direction of the
A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternativ..
How much heat in joules is needed to raise the temperature of 9.0 L of water from 0C to 94.0C? (Hint: Recall the original definition of the liter.)------J
A block of ice starts from rest on an apartment building's roof, which slopes at 41° below the horizontal. How far from the building does the block strike the ground
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