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Three identical point charges each of charge q are located at the vertices of an equilateral triangle, Find a symbolic expression for the electric potential at the center of the triangle
A block of mass m = 2.10 kg is pushed a distance d = 4.20 m along a frictionless horizontal table by a constant applied force of magnitude F = 16.0 N, Determine the work done on the block by the app
Consider an XY coordinate plane. Wire A is placed along the y-axis at x=0 and wire B is placed parallel to wire A at x= 0.240 m, Find the magnitude of the magnetic field at x=0.380 m
You have been called to testify as an expert witness in a trial involving an automobile accident, determine that the coefficient of kinetic friction between the wheels and the pavement at the time of
At T = 0ºC and p = 1000mb, 1g of dry air receives during an isochoric process anamount of heat, what is the amount of heat absorbed
One kilogram of dry air is warmed from 20ºC to 70ºC under a constant pressure of 1atm. Calculate the change in internal energy
Calculate the work done on a gas, the change in internal energy of the gas, the heat added to the gas, and the change in entropy of the gas when 1.12 moles of oxygen
You are traveling on an airplane. The velocity of the plane with respect to the air is 180 m/s due east, How far east will the plane travel in 1 hour
Astronomers determine that a nearby galaxy is moving toward our galaxy at a speed of 720.0 km/s with respect to the Earth, what was the wavelength emitted by the star
A car is traveling around a horizontal circular track with radius r = 240 m at a constant speed v = 17 m/s, What is the y component of the car's acceleration when it is at point B
You are traveling on an airplane. The velocity of the plane with respect to the air is 110 m/s due east, What is the heading of the plane with respect to the ground
A motorist suddenly notices a stalled car and slams on the brakes, decelerating at the rate of 6.3 m/s2, How much time elapsed from the initial braking to the collision
A small plastic bead has been charged to -15nC, What is the magnitude of the acceleration of a proton that is 0.90cm from the center of the bead
A 1.6-cm-tall object is 30cm to the left of a lens with a focal length of 15cm . A second lens with a focal length of 42cm is 58cm to the right of the first lens, Calculate the image height
A jet with mass m = 1.3 × 105 kg jet accelerates down the runway for takeoff at 2.4 m/s2, What is the net vertical force on the airplane as it levels off
Two cylindrical bars, each with diameter of 2.50 cm, are welded together end-to-end. One of the original bars is copper and is 0.360 m long, What is the resistance between the ends of the welded bar
A massless cylinder 49 cm long rests on a horizontal frictionless table. The cylinder is divided into two equal sections by a membrane, How far will the cylinder move if the membrane is removed
The total translational kinetic energy of the molecules of a sample of gas at 447 K is 1.33 x 10^4 J, Find the average translational kinetic energy of a single molecule
Find the rms speed and the average kinetic energy of a hydrogen atom at a temperature of 3.4x107 K. (At this temperature (3.4 x10^7)
Three point charges, -5.2 x 10-9 C, -8.1 x 10-9 C, and +7.7 x 10-9 C, are fixed at different positions on a circle. The total electric potential at the center of the circle is -2300 V
A charge of -2.87 ?C is fixed in place. From a horizontal distance of 0.0470 m, a particle of mass 7.43 x 10-3 kg and charge -9.14 ?C is fired with an initial speed of 60.0 m/s, How far does the par
Find the capacitance of a parallel plate capacitor that has two square plates both having a side length of 6 cm, where these plates are seperated by 15 mm
A small but measurable current of 7.4 x 10-10 A exists in a copper wire whose diameter is 2.9 mm, calculate the current density and electron drift speed
An object is being pushed up an inclined plane with a constant force F = 100. N. The plane makes an angle of 30.0° with respect to the horizontal, What is the mass of the object
It's generally okay to ignore relativistic effects when a particle's speed is less than 1.0% of the speed of light, Find the accelerating potential difference that will bring electrons to that speed,