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A body of mass m1 with initial velocity v0 collides with a second body, of mass m2, initially at rest (like in the LAB frame). The initial Kinetic energy K0 of the first body must be "paid for"(must be provided by some energy source). But it is the total kinetic energy of the two bodies in the center-of-mass(CM) frame which represents the energy available for reactions, to create new particles, et cetera. Calculate the ratio of this total energy to the initial LAB energy K0, in term of the masses m1 and m2.
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. find the tension in the tightrope
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What must be the tension in the wire if it is to take .80 seconds for a pulse to travel along the wire from one pole to the other.
Assume blue light (λ=500 nm) is used to decide the position of an electron to within the wavelength of the light. What will be the uncertainty in the electron’s velocity?
In general, for a concave mirror with a focal length +f, how far should an object be placed from the mirror to form a real image which is neither enlarged nor reduced(enter your answer as a multiple of f)?
A 2500mL- flask is initially open to air at 24 celsius and 1 atm pressure. How many moles escape when the air is released
At a beach the light is generally partially polarized due to reflections off sand and water. At a particular beach on a particular day near sundown, the horizontal component of the electric field vector is 2.3 times the vertical component.
A parallel-plate air capacitor of area A= 10.0 cm2 and plate separation d= 3.20 mm is charged by a battery to a voltage 50.0 V, how much additional charge will flow from the battery onto the positive plate
A block of ice of mass 8 kg, released from rest at the top of a frictionless ramp of a 1.50m long slides downhill, reaching a speed of 2.50 m/s at the bottom.
A traffic controller at the airport watches a commercial plane circling above at a distance of 16.0 km as the pilot waits for clearance to land
at a distance of 1.85 m from a point charge of 1.99 oc there is an equipotneial surface. at greater distances there are
A freezer is comprised of 1.80x1x0.5 m^3 volume, insulated with 5 cm thick Styrofoam. (1) At what rate should the compressor remove heat to maintain the inside at - 20 degrees Celsius with the outside at room temperature. (2) What is the R-value o..
consider two displacements one of magnitude 2.5 m and another of magnitude 4.1 m. what angle between the directions of
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