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A 1.00-m vertical tube, with its bottom closed and top open to the air, is partly filled by mercury. What is the absolute pressure at the bottom of the tube if the fundamental frequency of the filled tube is equal to the fifth harmonic of the empty tube?
You attach a meter stick to an oak tree, such that the top of the meter stick is 2.67 meters above the ground. how high above the ground was the acorn before it fell
The femur is a bone in the leg whose minium cross-sectional area is about 4.20 10-4 m2. A compressional forcein excess of 6.90 104 N will fracture this bone.
A ball with 3gr mass and momentum P strikes elastically a wall and bounces off. Calculate the change in the ball's momentum
Consider the transitions 3d -->2p in hydrogen. Calculate the possible energies of emitted photons, How many photon lines are there
The coefficient of static friction
A series R-L-C circuit is connected to a 150Hz ac source that has Vrms = 80.0V. What average power is delivered to the circuit by the source
A lightweight electric car is powered by ten 12-V batteries, What must be the power of the electric motor if the car is to travel at a speed of 90 km/h
A sinusoidal wave on a string is described by the wave function y = 0.10 sin (0.85x ? 35t) where x and y are in meters and t is in seconds. Determine the power transmitted by the wave
Density is the ratio of an object;s mass to its volume. Would you except density to be a vector or a sdcalar quanity? Explain.
A 0.3kg mas is attached to a spring with a spring constant of 120n/m and resys on a frictionless horizontal surface. It is compressed 17cm and released. Find forces and inital acceleration
An archer pulls her bowstring back 0.360 meter by exerting a force that increases uniformly from zero to 224 Newton. Compute how much work does the archer do in pulling the bow
A goldfish is swimming at 3.20 cm/s toward the front wall of a rectangular aquarium. The index of refraction of water is 1.333. Compute the apparent speed of the goldfish
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