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The refractive indices of materials A and B have a ratio of nA/nB = 1.79. The speed of light in material A is 1.07 x 10^8 m/s. What is the speed of light in material B?
Find the final velocity of the combined mass after an in elastic collision 500g at 4m/s toward 300g 2 m/s and the change of KE
Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total ene..
q1. a cord passes over a weightless and frictionless pulley. masses of 220 g and 389 g are attached to the ends of the
what is the magnitude and direction of the force. explain the magnitude and direction of the force she exerts on you?
A simple harmonic oscillator is described mathematically by x=0.25 sin(4.2pt +0.54px), What are the amplitude, speed and period of the wave
A ball bearing is dropped from rest at a point A. At the instant it passes a mark 4.5 m below A, How far does the second bearing fall in that time
Can you please help me set this problem up? Suppose that now you want to make a scale model of the solar system using the ball bearing .0014 m to represent the sun. (a) How far from it would you place a sphere representing the earth?
To estimate the muzzle speed of a blow dart, fire dart straight up into the air and time how long it takes to come back down. Roughly half of that time is the time for object to decelerate from its initial velocity to motionless. Estimation the in..
A ball is thrown from the top of a building upward at an angle of 39degrees to the horizontal and with an initial speed of 24m/s. The ball is thrown at a height of 57 m above the ground and hits the ground 98.55 m from the base of the building. Wh..
Calculate the rotational inertia of a meter stick, with mass 0.576 kg, about an axis perpendicular to the stick and located at the 29.9 cm mark
Trin has been prescribed bi-focals because his near point is at 2 m instead of 25 cm and his far point is at 10 m instead of infinity. Describe what's wrong with his eyes
A square loop of Cu wire 4.00cm on an edge is lying on a horizontal table. An electromagnet above the square loop is turned on to produce a magnetic field. what is the power loos in the loop
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