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Carbon tetrachloride (n=1.46) is poured into a container made ofcrown glass (n=1.52). If light ray in the glass is incident on theglass-to-liquid boundary and makes an angle of 30 with the normal, what is the angle of the corresponding refracted ray.
A radar system can measure the time delay between the transmitted and reflected wave pulses from a distant airplane with an accuracy of 1.02 picoseconds. What is the accuracy in the calculated distance to the plane
A space station is constructed in the shape of a wheel 16 rm m in diameter, with essentially all of its 6.0×10^5 rm kg mass at the rim.
A satellite is on a circular orbit of radius twice of that of Earth. If the Earth surface is considered to be a mirror, what is the speed of the image of the satellite
A 70- kg child sits in a swing suspended with 3.3- m-long ropes. determine the speed the child will have at the bottom of the arc
How large a force F2 must the second crewman pull so that the net force of the two crewmen is in the forward direction.
A proton and an electron have the same wavelength. Which particle is moving faster and which possesses more kinetic energy
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
A glass flask whose volume is 1000cm3 at a temperature of 0.200?C is completely filled with mercury at the same temperature. find the coefficient of volume expansion of the glass
a frictionless pulley which can be modeled as a 0.80 solid cylinder with a 0.30 m radius has a rope going over it. What is the angular acceleration of the pulley
A rubber ball (mass 0.27 kg) is dropped from a height of 1.8 m onto the floor. What is the magnitude and direction of the impulse imparted by the floor to the ball
A 12.0-V battery produces 205mA when it's across a 47.5? load, Find the potential difference across the battery's terminals
A horizontal plywood disk with mass 7.40kg and diameter 1.12m pivots on frictionless bearings about a vertical axis through its center. Find the magnitude and direction of the angular velocity of the disk relative to the earth
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