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a .450 kg bead slides on astraight frictionless wire with a velocity of 3.50 cm/s to the right. the bead collides elastically with a larger .950 kgbead initially at rest. after the collision, the smaller beadmoves to the left with a velocity of .70 cm/s. find the distance the larger bead moves along the wire in the first 9seconds after the collision. (answer is in cm)
A singly charged ion of 7Li (an isotope of lithium) has a mass of 1.16×10?26kg, What is the radius of the ion's path in the magnetic field
A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. what is the emissivity of the sphere
There are 3.344 x 10^25 molecules in 1 kg (1 litre) of water. What is the distance between the molecules
A dipole moment is placed in a uniform electric field oriented along an unknown direction. The maximum torque applied to the dipole is equal to 0.1 N.m. When the dipole reaches equilibrium its potential energy is equal to -0.2 J. What was the initial..
A flower pot on a balcony railing falls to the ground 8.63m below. A cat directly beneath the pot sees it begin to fall. How long does cat have to move.
An ideal, monatomic gas is allowed to expand quasi-statically and adiabatically, What is the work done by the gas and What is the change in the internal energy of the gas?
A home run is hit in such a way that the baseball just clears a wall 13 m high, located 135 m from home plate. Find the time it takes the ball to reach the wall
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
A mass spectrometer,sketched below, is a device used to separate different ions. Suchions with a well-defined velocity vo enter through aslit into a region of uniform magnetic field B, where they follow asemicircular path until they strike the detec..
question a straight cylindrical wire lying along the x axis has a length l and a diameter d. it is made of a material
1 a notebook computer wire carries 1.5 a. how many electrons pass through the wire each second? 2 a 50-w and 100-w
late one night on a highway a car speeds by you and fades into the distance. under these conditions the pupils of your
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