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Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.5 m/s. Particle 2 has a mass m2 and a velocity v2 = -6.3 m/s. The velocity of the center of mass of these two particles is zero. In other words, the center of mass of the particles remains stationary, even though each particle is moving. Find the ratio m1/m2 of the masses of the particles.
An auto race is held on a circular track. A car completes onelap in a time of 21.5 seconds, with an average tangential speeed of38.1 m/s. What is the radius of the track
A plane accelerates from rest at a constant rate of 5.00m/s2 along a runway that is 1800m long. What is the speed
Two infinitely large sheets of charge are vertical, parallel to each other, and 24.0 cm apart. One of the sheets has a charge density of +4.60 x 10 -7 C/m2. Calculate the unknown sheet's surface charge density
A proton has a speed of 0.85c. FIRST Calculate the rest energy of the proton, Calculate the kinetic energy of the proton
A boy starts from point A and moves 5 unitstoward the east, then turns back and moves 3 units toward the west. What is the displacement in the position of the boy
A 6.00-kg object oscillates back and forth at the end of a spring whose spring constant is 76.0 N/in. An observer is traveling at a speed of 1.90x108 m/s relative to the fixed end of the spring. What does this observer measure for the period of os..
You have a string with a mass of 0.0127 kg. You stretch the string with a force of 8.13 N, giving it a length of 1.81 m. What is the wavelength of the standing wave you create in the string
a metallic surface is illuminated with light of wavelength 400 nm if the work function for this metal is 2.487 eV what the velocity of the ejected electrons would be
A square metal plate 0.180 m on each side is pivoted about an axis through point O at its center and perpendicular to the plate. Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are ..
two circuits are constructed using identical ideal batteries emf e and identical lightbulbs resistance r. if each
Briefly explain why a star of mass 0.5A/1,, collapses to form a white dwarf when the nuclear reactions in its core cease. That is the maximum theoretical mass of a white dwarf? Describe (in about 100 words) what happens to a star if its mass exceeds..
A student sitting on a frictionless rotating stool has rotational inertia 0.97 kg*m2 about a vertical axis through her center of mass when her arms are tight to her chest. what's her new rotational velocity
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