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Soap bubbles can display impressive colors, which are the result of the enhanced reflection of light of particular wavelengths from the bubble's walls. For a soap solution with index of refraction of 1.04, find the minimum wall thickness that will enhance the reflection of light of wavelength 705 nm in air. Answer in nm
q1. youre carrying a 4.0-m-long 25 poles to a construction site when you choose to stop for a rest. you place one end
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance x = 0.91 m from the end of the track after falling a vertical distance h2 (bottom of ramp)= 1.03 m from the ..
A galvanometer has a coil with a resistance of 75 ?. A current of 156 mA causes full scale deflection. Calculate the value of the series resistor that is required in order to use the galvanometer as a Voltmeter with 40 V full scale
A cup with mass 4.1 kg has been sitting in a room with a temperature of 23 oC for a long time. Calculate the specific heat of the cup
Wavelengths of light from a distant galaxy are found to be 0.58% longer than the corresponding wavelengths measured in a terrestrial laboratory. Is the galaxy approaching or receding from the earth
What must the charge (sign and magnitude) of a particle of mass 1.40 be for it to remain stationary as placed in a downward-directed electric field of magnitude 670.
Two 22.3-cm-focal-length converging lenses are placed 16.5?cm apart. An object is placed 35.0?cmin front of one lens. obtain the total magnification
A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.860 m/s encounters a rough horizontal surface of length scripted l = 0.65 m, Find the net work done on the crate while it is on the rough surface
A geiger-muller tube is a type of gas-filled radiation detector. It can detect particles like X-rays, alpha particles and beta rays (electrons). what is the density of the gas in this geiger tube
During the time interval between t = 0 s and t = 26 s the total amount of charge that has crossed a plane across a wire at time t , What is the maximum value of the current
A projectile is fired in such a way that its horizontal range is equal to12.5times its maximum height. What is the angle of projection
A mass spectrometer applies a voltage of 2.00 kV to accelerate a singly charged positive ion. A magnetic field of B = 0.400 T then bends the ion into a circular path of radius 0.305 m. What is the mass of the ion?
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