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A point charge q1 is held stationary at the origin. A second charge q2 is placed at point a, and the electric potential energy of the pair of charges is +5.4 x 108 J. When the second charge is moved to point b, the electric force on the charge does -1.9 x 10-8 J of work.
What is the electric potential energy of the pair of charges when the second charge is at point b?
A model of a helicopter rotor has four blades, each 3.60 m in length from the central shaft to the bladetip. What is the radial acceleration of the blade tipexpressed as a multiple of the acceleration due to gravity,g?
If I know the net force acting on an object and the acceleration that the object has from the force. How do I find the weight of the object
Two narrow slits are utilized to produce a double-slit interference pattern with monochromatic light (λ = 680 nm). The slits are separated by 0.70 mm, and the interference pattern is projected onto a screen 5.5 m away from the slits.
A 20-cm diameter circular object has a mass of 0.7 kg distributed uniformly in a disc. What is its rotational kinetic energy when it is operating at 3000 rpm? What average power should be applied to bring the object from rest to its operating 3000rpm..
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.20 x 106 m/s. Compute the force acting on the electron as it revolves in a circular orbit of radius 5.30 x 10-11 meter
Biotechnology refers to the technical applications of living organisms or their functions. These applications may be used in engineering, medicine, or agriculture, to name a few. Biotechnology processes and procedures are varied and range from the do..
A 2.3 µF capacitor and a 5.3 µF capacitor are connected in parallel across a 320 V potential difference. Calculate the total energy in joules stored in the capacitors
a particle m 3.0 microg q 5.0 microc moves in a uniform magnetic field given by 60jmt. at t 0 the velocity of the
a mass M is hanging from two strings. There is a tension of 34 N in the string on the left and a tension of 24 N in the string on the right. How heavy is the object
A rocket blasts off from rest and attains a speed of 60.0 m/s in 13.9 s. An astronaut has a mass of 67.8 kg. What is the astronaut's apparent weight during takeoff
Three identical boxcars are coupled together and are moving at a constant speed of 28.0 on a level, frictionless track. What is the speed of the four cars
two unknown charges attract each other with a force of 4.0 n when they are 4.1 m apart. find the force in n between
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