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Question: Imagine that Fig. is a snapshot of the wave traveling to the right along the string. At the exact moment that the photo is taken, what is the direction of motion of the string at point A? At point B? At point C?
Fig. - (a) Transverse wave on a string, (b) Longitudinal sound wave in a gas
A very light spring of equilibrium length 10.0 cm is hung from the ceiling with a 0.40 kg block at its end. When the block settles, the spring is 15.0 cm long. The same block-and-spring system is then set up horizontally on the floor, with the fr..
Atmospheric scientists studying clouds in the Marshall Islands have observed what they believe to be the world's largest raindrops, with a radius of 0.52 cm. How many molecules are in these monster drops
a series of object are being rotated. the same net torque is being applied to each object. rank the object in order of
A coin with a diameter of 2.30 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 15.5 rad/s and rolls in a straight line without slipping. how far does the coin roll before coming to rest
Light and heavy holes: construct basis functions as eigen functions of total angular momentum J=L+S where L=1 is angular momentum and S=1/2 is electron spin. Construct Luttinger spinors and compute energy spectrum of a hole
A 12 nC point charge is at the center of a 2.0 m x 2.0 m x 2.0 m cube. What is the electric flux through the top surface of the cube
A light signal is sent from the origin of a system K at t=0 to the point x=3m, y =5m, z = 10m. a) At what time t is the signal received? b) Discover (x’,y’, z’, t’) for the receipt of the signal in a frame K’ that is moving along the x axis of k at ..
Mary needs to row her boat across a 120{\rm m} -wide river that is flowing to the east at a speed of 1.5{\rm m/s}. how far downstream will she land
A bullet (mass 3.5 g), traveling horizontally at unknown speed, strikes a ballistic pendulum. What is the speed of block+bullet immediately after the collision? What was the original speed of the bullet?
NASA has sent a satellite to a new planet with an unknown mass. They place the satellite in geosynchronous orbit at a distance of 4000 km from the center of the planet and measure the period to be 2.0 earth days.
The inverse-square law says that the intensity that you hear/measure of a sound changes depending on how far away you are from the sound source. More precisely, it is inversely proportional to the square of thedistance from the sound source. That is,..
When the plunger is pushed, contents of the syringe are forced throughout a hollow needle (also of circular cross-If a 4.0 N force is applied to plunger and diameters of the plunger and the needle are 1.20 cm and 2.50 mm, correspondingly, what force ..
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