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1) If a diffraction grating has 6,000 grooves per centimeter, to what angle will the first order constructive interference "line" of the Hydrogen Alpha (red) emission be diffracted?
2) Atoms of the hydrogen gas enveloping a particular star absorb the Hydrogen Alpha wavelength from the white light emanating from the surface of the star and reemit that color in random directions, causing the spectrum received by observers on Earth to have a dark line due to the missing light. (Discovered by Joseph Fraunhoffer) Suppose the measured wavelength of the dark line is found to be 6555 Angstroms. Is the radial motion of the star toward or away from Earth? Compute how fast the star is moving relative to the earth.
two charged particles are located along the x-axis 4uc at the origin 00 and -8uc at the point 2m0.a derive an equation
Consider a set of conducting metal tracks (two parallel beams by a flat top surface) 0.3 m apart. Across the tracks, perpendicular to them is a conducting rod of mass 0.65 kg. There is a uniform magnetic field of 0.80 T [Tesla, the SI unit of magneti..
A Styrofoam cup holding 122 g of hot water at 1.00 102°C cools to room temperature, 21.0°C. What is the change in entropy of the room
A small 15{rm g} bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction.
A charge of +111 C is fixed at the center of a square that is 0.80 m on a side. How much work is done by the electric force as a charge of +8.1 C is moved from one corner of the square to any other empty corner?
Create a graph corresponding to the stone vertical velocity
If a soldier shoots an enemy with the intent of killing him, he wants the bullet to deliver maximum energy. On the other hand, if he wants to merely knock someone down (say for dispersing a riot) he wants the bullet to deliver maximum force.
A toy train is pushed forward and released at with a speed of 2.0 m/s. It rolls at a steady speed for 2.0 s, What is the magnitude of the train's acceleration after its wheel begins to stick
A person walks first at a constant speed of 5.10 m/s along a straight line from point to point and then back along the line from to at a constant speed of 2.95 m/s. (a) What is her average speed over the entire trip? (b) What is her average veloci..
A puck goes around its circular path once every 1.6 second. Its speed is 33 cm/s. Estimate what the radius of its circular path
An inductor designed to filter high-frequency noise from power supplied to a personal computer is placed in series with the computer. What minimum inductance should it have to produce a 1.80 k reactance for 15.0 kHz noise
The leg and cast weigh 220 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 135 N. find the weight w2 and the angle α needed so that no force is exerted on the hip joint by the leg plus cast.
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