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A 200 resistor has a current of 1.5A running through it and is connected in series with a 300 resistor. what is the emf of the battery to which the resistors are connected?
A thin film with index of refraction n = 1.48 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. what is the film thickness
question1a 100-kg athlete is performing vertical leap to test his leg strength. he leaves ground at 3.20 ms zooms
Suppose a manufacturing plant has an average sound intensity level of 97.0 dB created by 25 identical machines. Find the total intensity created by all the machines
A lens is formed from a plastic material that has an index of refraction of 1.55. If the radius of curvature of one surface is 1.25 m, calculate the focal length and the power of the lens.
The core of an optical fiber has an index of refraction of 1.27, What is the critical angle for total internal reflection at the core-cladding interface
A bus makes a trip according to the position time graph shown in the drawing. Find the average velocity (magnitude & direction) of the bus during each of the segments labelled A, B, & C?
White light, which is a mix of all visible wavelengths in the range of 400 nm to 700 nm, What is the thickness of the plate if the next wavelength for which there is constructive interference is 540.6nm
The coefficient of static friction between the wall and the rod is μs = 0.575. Determine the minimum distance x from point A at which an additional weight w (the same as the weight of the rod) can be hung without causing the rod to slip at point A.
Three forces act on a moving object. One force has a magnitude of 82.8 N and is directed due north. What must be the direction of the third force
A 0.954-kg toy car is powered by 2 C cells (3.00V total) connected directly to a small DC motor. The car has an effective energy conversion efficiency of 52.6%, What is the average current supplied to the car\'s motor
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string? (b) What is the wave speed when the suspended mass is 1.7 kg?
A light plane attains an airspeed of 370 km/h. The pilot sets out for a destination 800 km to the north but discovers that the plane must be headed 10° east of north to fly there directly. What was the j-component of the wind velocity vector
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