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Two identical blocks with mass m, connected by a light spring (neither compressed nor stretched), slide with speed v0 on a frictionless surface towards a wall (see gure below).
At t = 0 the left block is at distance L from the wall. Find the time after which the center of mass of this system will be again at the position it was when t = 0.
Assume that the block collides with the wall elastically, and the duration of the collision is negligibly short. The force constant of the spring is k.
One possible concern with MRI is turning the magnetic field on or off too quickly. Bodily fluids are conductors, and a changingmagnetic field could cause electrical currents to flow through the patient. Suppose a typical patient has a maximum cros..
Prove that, given two angular momenta, L and S, their sum J = L+ S satisfies the commutation relations of the angular momentum (and therefore has the all the general properties of an angular momentum, e.g., the ladder structure, etc.).
one of your classmate has a friend with a boat. here is your classmate on water-skis being towed. what is the friction force of the water
Can you explain diffraction in term of interference? Are they different phenomena? Explain. Include a clear diagram to support your explanations. What is the diffraction limit and how does it affect optical instruments?
An electron in a hydrogen atom has orbital angular momentum quantum number l = 5. Determine what is the least possible angle between its orbital angular momentum vector L and the component Lz
A hydrogen atom initially in its ground state (n=1) absorb a photon and ends up in the n=3 state. what photon energies could the atom emit
An 8.00-g bullet is fired horizontally into a 9.00-kg block of wood on an air table and is embedded in it. After the collision, the block and bullet slide along the frictionless surface together by a speed of 10.0 cm/s. What was the initial speed of ..
A web page designer creates an animation in which a dot on a computer screen has a position of r? =[ 4.2cm +( 2.3cm/s2 )t2]i^+( 4.5cm/s )tj^
A fullback with a mass of 105 kg and a velocity of 2.5 m/s due west collides head-on with a defensive back with a mass of 70 kgand a velocity of 4.0 m/s due east. What is the initial momentum of each player
A 65Kg ice skater pushes off his partner and accelerates backwards at 1.3m/s^2. If the partner accelerates in the opposite direction at 2.0m/s^2, what is mass of the other skater.
You are holding a compass 3.50 m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. find the magnitude of the current carried by the wire
The brightest star in the night skyis Sirius, which is at a distance of 8.30×1016 m. how far back in time are we seeing it
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