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Four identical particles, each with mass m = 10^-6 kg and charge Q = 10^-6 C, are initially at the four corners of a square with side-length a = 0.01 m. If all four particles are simultaneously released from rest, what is their speed when they are a large distance apart? If only one particle is released from rest, while the other three remain stationary at the three other corners of the square, what is the final speed of the released particle once it is very far away?
An elevator and its load have a combined mass of 1450 kg, Find the tension in the supporting cable when the elevator, originally moving downward at 11 m/s
A torque of 500Nm is applied to a turbine rotating at 200rad/s. How long would it take for an angular speed to triple
A 1.60 cylindrical rod of diameter 0.550 is connected to a power supply that maintains a constant potential difference of 15.0 across its ends, Find the temperature coefficient of resistivity at 20 for the material of the rod
A 20 kg crate is pushed across the floor at a constant velocity of 4 m/s with a force of 100 N. How much energy is lost to heat in the first ten seconds
The radius of curvature of the curved side of a plano-convex lens made of glass (n=1.64) is 33cm
particles 1 and 2 are fixed in place on an x axis at a separation of l 8.00cm. their charges are q1 e and q2 -
Two blocks are in contact on a frictionless table. A horizontal force F is applied to m1. If m1 = 1.66 kg, m2 = 3.72 kg, and F = 6.25 N, find the magnitude of the force between the two blocks
Two infinite lines ofcharge with equal linear charge densities l(C/m) are placed alongthe x and y axis. Derive an expression for the magnitude ofthe electric field at an arbitrary point (x, y).
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the Empire State Building. Before the state legislature votes on funding for the project, they would like you to prepare a report on the benefits..
A portion of Nichrome wire of radius 3.95 mm is to be used in winding a heating coil. If the coil must draw a current of 9.70 A when a voltage of 120 V is applied across its ends, find the following. (Take the resistivity of nichrome to be 1.50 10..
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
o skydivers are holding on to each other while falling straight down at a common terminal speed of 57.1 m/s. compute the change in kinetic energy of the system
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