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A point charge of 6.1 µC is at the center of a cubical Gaussian surface 60 cm on an edge. What is the net electric flux through the surface?
An electron, traveling at a speed of 6.10 × 107 m/s, strikes the target of an X-ray tube. What is the wavelength of the photon
An important news announcement is trans- mitted by radio waves to people who are 122 km away, sitting next to their radios, and by sound waves to people sitting across the newsroom, 1.2 m from the newscaster. Take the speed of sound in air to be 345 ..
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.1 ms, How much charge moves during this time
A hunk of aluminum is completely covered with a gold shell to form an ingot of weight 44.0N. What is the weight of the gold in the shell
Two small frogs simultaneously leap straight up from a lily pad. Frog A leaps with an initial velocity of 0.676 m/s, what is the position and velocity of the other frog
A teenager pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 12rpm in 10.8s. What force is required at the edge
a 9 kg bar 1.5 m long is set up to rotate about its center (the dark circle). Each arrow represents a force that is being applied to the bar. FA = 15 N, FB = 28 N, FC = 35 N, & FD = 19 N. Determine the angular acceleration of the bar
A 1.65 kg mass is placed on the end of a spring that has a spring constant of 195 n/m. find the change in elastic potential energy of the system
Consider a gas of non-interacting spinless bosons in a 3d space with relativistic energy dispersion law E(p) = cp, find the fraction of atoms condensed into the lowest energy state
In astronomy it is common to expose a photographic plate to a particular portion of the night sky for quite some time in order to gather plenty of light. For how long should Matt expose a second plate located 4.1 m from the source
Consider two concentric thin wall steel tubes, the larger one closed at the bottom and the inner one open. What must be the relationship between the radii of the tubes
A beaker has a height of 15.0 cm. The lower half of the beaker is filled with water, and the upper half is filled with oil (n = 1.48). what is the apparent depth of the bottom
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