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People with good vision can make out an 8.8-mm-tall letter on an eye chart at a distance of 6.1 m . Approximately how large is the image of the letter on the retina? Assume that the distance from the lens to the retina is 24 mm.
In the plane y=0, what is the coordinate transformation matrix d(x^mu)/d(x^v') relating (x,z) to (nu,theta)?
A proton is initially at rest at a point where the potential is 455V. Sometime later the proton is at a point where the potential is 191V. If no force but the electrostatic force acts on the proton, what is its final kinetic energy.
A 1260 kg car pushes a 2140 kg truck that has a dead battery. When the driver steps on the accelerator, find the magnitude of the force that the car exerts on the truck?
By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the drawing shows, with m1 = 12.2 kg and m2 = 42.8 kg. find the mass of the pulley
A car rounds a curve that is banked inward. The radius of curvature of the road is R = 139, the banking angle is ? = 31°, Find the minimum speed that the car can have without slipping
The Specific heat of a substance varies with temperature according to the function c=0.20 + 0.14T + 0.023T2, Determine the energy required to raise the temperature of 2.0 gram of this substance from 5.0oC to 15oC
A simple generator has a 620-loop square coil 21cm on a side. How fast must it turn in the 0.690 T field to produce a 140 V peak output.
A uniform electric field has a magnitude 2.40 kV/m and points in the +x direction, Find the expression for the electric potential V(x) if its value is chosen to be zero at x = 0
A light rod L has a ball with mass m attached to its end, forming a simple pendulum. It is inverted so that the rod is straight up and then released. What are a) Its speed at the lowest point b) The tension in the suspension at that instant?
q1. a 60.0 kg pole vaulter running at 12.0 ms vaults over the bar. assume that the vaulters horizontal component of
A ball rolls down a hill. What causes constant acceleration down the hill? What determines how much acceleration there is (is the angle/incline of the hill a factor)
You are to make four straight-line moves over a flat desert floor,starting at the origin of an xy coordinate system andending at the xy coordinates (-135 m, 40 m). The xcomponent and y component of your moves are the following,respectively, in met..
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