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A particle of mass 2.4x10^-5kg and charge 3.0x10^-6C is accelerated from rest in a uniform electric field of 180 N/C. Find its acceleration in the electric field and its speed and kinetic energy after 1.6 ms.
What magnitude of charge must be given to the drop
A rock with mass m = 3.70 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 19.3 N and by a fluid resistance force.
A proton is initially at rest at a point where the potential is 455V. Sometime later the proton is at a point where the potential is 191V. If no force but the electrostatic force acts on the proton, what is its final kinetic energy.
What are new charge on spheres - Two insulated charge Cu spheres A and B OF IDENTICAL size have charge qa and -3qa
What is the resultant vector, R, obtained by adding vectors C and D? Express the magnitude to three significant figures. Express the angle to one decimal place.
In open heart surgery a much smaller amount of energy will defibrillate the heart, What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 55.0 J of energy
A soccer player kicks the ball toward a goal that is 16.0 m in front of him, Find the speed of the ball when the goalie catches it in front of the net
What horizontal force P must a worker exert on the rope to position 50 kg. crate directed over the trailer.
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
A damped mass-spring system oscillates at 140 Hz. The time steady of the system is 2.0 s. At t = 0, the amplitude of oscillation is 8.6 cm and the energy of the oscillating system is after that 86 J.
A train is traveling up a 3.3 incline at a speed of 3 when the last car breaks free and begins to coast without friction. How long does it take for the last car to come to rest momentarily? How far did the last car travel before momentarily coming..
A rocket fires two engines simultaneously. One produces a thrust of 615 directly forward while the other gives a thrust of 474 at an angle 39.6 above the forward direction.
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