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Light of wavelength 624 nm is incident perpendicularly on a soap film suspended in air. Assume the soap film has n = 1.33. What are the smallest two thicknesses of the film for which reflections from the film undergo fully constructive interference?
A typical car battery is composed of six, 2.1 V cells arranged in series to have an Emf of 12.6 V. How many electrons pass through the starter motor
The electric potential inside a conducting sphere is 245V, and a distance d = 32.0cm from the surface of the sphere, obtain the radius of the sphere
A freight train has a mass of 1.7 × 107 kg. If the locomotive can exert a constant pull of 7.1 × 105 N, how long does it take to increase the speed of the train from rest to 64 km/h
A 49.5 kg boy jumps on a 4.95 kg pogo stick with spring constant 3650 N/m, Find the period of the boy's motion
How much charge does a battery have to supply to a 5.00 µF capacitor to create a potential difference of 1.20V across its plates
The work function for a metal surface is 5.22 eV. What is the largest wavelength of light in nm that will produce photoelectrons from this surface
X-rays with a wavelength of 7.02 x 10^-12 m strike a stationary electron and the reflected photon is scattered 75 degrees relative to the incident photon. What is the wavelength of the scattered photon?
q1. three objects with masses m1 54.6 kg m2 38.8 kg and m3 20.0 kg are hanging from ropes that run over pulleys.
A rocket rises vertically, from rest, with an acceleration of 4.0m/s2 until it runs out of fuel at an altitude of 1400m. After this point, What maximum altitude does the rocket reach
A student throws a water balloon vertically down from the top of a building. The balloon leaves the thrower's hand with the speed of 16 m/s. How fast is it traveling after 2.6 seconds.
q1. if air drag is negligibly small how fast is sequoia cone moving while it reaches the ground if it dropped from the
To move a large crate of mass 30.05 kg across a rough floor, you push on it with a force at an angle of = 22.8° below the horizontal. Compute the acceleration of the crate if the applied force is 382 N and coefficient of kinetic friction is 0.486.
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