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You have two 120V light bulbs, one 25W and one 100W, that are normally connected in parallel with 120V across each. Your friend had what seemed like a good idea which was to connect them in series across a 240V power line. However, one of them burned out immediately. Which one burned out and why? Explain in 100 words or less. Thanks!
A snowboarder is pulled by a tow rope along a horizontal surface with a constant force of 60 N. How far must the boarder be pulled, starting from rest, so that her final kinetic energy is 500 J.
q1. megans mass is 30 kg. she climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 ms at the bottom of the
The allowed energies of a simple atom are 0.0 eV, 4.5 eV, and 7.0 eV. What is the minimum speed the electron could have after the collision
Two waves have the exact same frequency, wavelength, and amplitude. They are both travelling in the +x direction, What is the phase difference between the two waves.
Under controlled darkened conditions in the laboratory, a light receptor cell on the retina of a person's eye can detect a single photon of light of wavelength 505 nm, What is the intensity (in W/m^2) delivered to a rod
A golf ball strikes a hard, smooth floor at an angle of 32.5 ° and rebounds at the same angle, What is the magnitude of the impulse applied to the golf ball by the floor
Two point charges are placed on the y axis as follows: charge q1= -1.50 nC at y= -.600m, What is the net force (magnitude and DIRECTION) exerted by these two charges on a third charge
Problem on the velocity of boat
Green light (λ = 546 nm) strikes a single slit at normal incidence. What width slit will generate a central maximum that is 3.00 cm wide on a screen 1.76 m from the slit.
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
A piano tuner hears 2.0 beats per second between his 440 Hz tuning fork and a piano wire that has a lower pitch sound
Suppose that a plane is traveling with a horizontal velocity of vx = +238 m/s at an altitude of y = 1053 m. determine the time required for the package to hit the ground
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