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A nearsighted man has a near point of 10.4 centimeter and a far point of 49 centimeter. He shaves without using his glasses. In order to see a clear image, find what are the minimum and maximum distances of the mirror from his face?
A particle of mass m in an infinite well has its initial wavefunction ψ (x,0) = A[ψ1(x) +ψ3(x)] where ψ1(x) and ψ3(x) are stationary states. The boundaries of the well are x = 0 and x = a.
There is a system of three particles which have masses of M, 2M, and 3M as indicated M------2m------3m [----L----][----L----] find the X coordinate of Xcm of the center of mass. Assume that the particle M is at the origin and the positive x axis is d..
a small charged bead has a mass of 3.7 . it is held in a uniform electric field 200000 up. when the bead is released
q1. a coin is placed 12.0 rm cm from the axis of a rotating turntable of variable speed. when the speed of the
A system does 167 J of work on its environment and gains 85.5 J of heat in the process, Find the change in the internal energy of the environment
To make the dial of a watch glow in the dark, 1.20E-9 kg of radium226Ra is used. The half-life of this isotope is 1.60E+3 yr. How many kilograms of radium disappear while the watch is in utilize for 49.0 years?
An airplane pilot fell 355 m after jumping from an aircraft without his parachute opening. He landed in a snowbank, creating a crater 1.3 m deep, estimate the work done on him by air resistance as he fell
A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west,perpendicular to each other, at 20m/s, The third piece hastwice the mass as the other two. What is the speed and the direction of the thir..
Determine far point distance of a nearsighted eye which requires a -4D correcting lens
you throw a stone upward with an intial speed of 5.8m/s from a third-story office window. Find the speed of the stone just before it hits the ground
A tether ball of mass 0.40 kg is attached to a vertical pole by a cord 1.5 m long. Assume the cord attaches to the center of the ball. The cord makes an angle of 20° with the vertical. (a) What is the tension in the cord? . N (b) What is the speed of..
A motorist driving along a straight road at a constant speed of 60 -m/s. At time t=0 she passes a parked motorcycle police officer and begins to accelerate at the constant acceleration.
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