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The yellow light from a helium discharge tube has a wavelength of 587.5nm. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.250. Calculate number of lines per centimeter on the grating. answer in lines/cm
A solenoid of length 4.0 cm and diameter 0.93 cm is wound with 165 turns per cm. What is the induced emf in one of the windings
A 5.97kg block is traveling on a one-dimensional frictionless surface. The block strikes a second block of mass 5.08kg that was initially at rest, What was the initial momentum of the first block
a 0.144 kg glider is moving to the right on a frictionless horizontal air track with a speed of 0.700ms . it has a
An ideal gas, Cp = (7/2)R, is heated in a steady-flow heat exchanger from 70°C to 190°C by another stream of the same ideal gas which enters at 320°C. The flow rates of the two streams are the same, and heat losses from the exchanger are negligibl..
What is the average speed of a rider on this Ferris wheel.
q1. a 4.5 kg block starts at rest and slides a distance d down a frictionless 32.0 degree incline where it runs into a
A 10000 N car comes to a bridge during a storm and finds the bridge washed out. How fast should the car be traveling just as it leaves the cliff in order to clear the river and land safely on the opposite side
Objects A and B are both positively charged. Both have a mass of 138 g, but A has twice the charge of B. How large is the electric force (in N) on A
A 7.80-nF capacitor is charged up to 15.0V , then disconnected from the power supply and connected in series through a coil. Calculate the maximum charge on the capacitor
a box full of books rests on a wooden floor. the normal force the floor exerts on the box is 235 n. a you push
does the non-Coulomb electric field curl clockwise.
High-speed photos of a 200?g flea jumping vertically show that the jump lasts 1.5ms and involves an average vertical acceleration of 110 g, What's the change in the flea's momentum during its jump
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