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Diffraction. In a single-slit diffraction pattern, the forth-order minimum is 1.5° from the center. What's the slit width if the wavelength is 450 nm? and 650 nm?
A 95g ball of clay traveling at speed v0 hits and sticks to a 1.9kg kg block sitting at rest on a frictionless surface. What percentage of the ball's initial energy is "lost"
An aircraft performs a maneuver called an aileron roll. During this maneuver, the plan turns like a screw as it maintains a straight flight path, but using its ailerons to set the wings in circular motion.
an object is acted on by a drag force with a magnitude that is proportional to the speed. the object accelerates
A 40cm x 15 cm rectangular loop of wire is being pulled into a region of uniform magnetic field B. What is the magnitude of the magnetic field B? What is the magnitude of the emf induced in the loop?
A bird sits on a telephone wire midway between two poles 20m apart. The wire, assumed weightless, sags by 50cm. If the tension in the wire is 90N, what is the mass of the bird?
Two runners start simultaneously from the same point on a circular 200-m track and run in the same direction. How far from the starting point will each have run at that instant
A cylinder with a diameter of 9 microns and a height of 40 microns is composed of Al2O3. Calculate the number of aluminum atoms and the number of oxygen atoms
what is the final equilibrium temperature of the system?
The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2? R2 and R3 are parallel so these need to be treated with R1 as Requiv = R1+ (R2*R3)/R2+R3 but don't know where to ..
An emf of 10.0 V is connected to a series RC circuit consisting ofa resistor 2.00x106 and a capacitor of 3.00μF. Find the time required for the charge on the capacitor to reach80.0% of its final value.
What is the de Broglie wavelength of a neutron that has fallen 0.80m in a vacuum chamber, starting from rest
Using a wheel and axle machine, a force of 100 Newton applied to the rim of a wheel can lift a load of 80 kilogram. Obtain the actual mechanical advantage and the efficiency of the machine
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