Three positive charges are located at the corners of an equilateral triangle as in the figure below. Find an expression for the electric potential at the center of the triangle. (Use the following as necessary: ke, Q, and d.) V = ?

Q: A planet rotates through one complete revolution every 27 hours. Since the axis of rotation is…

A: Time period T= 27 hours = 27×60×60 sec. T = 97200 sec. Angular velocity= 2πT Angular velocity =…

Q: give examples ( of electrodes shape ) for uniform filed and non-uniform electric field ??

A: For unit form electric field, The magnitude and direction of electric field is constant, Example:…

Q: bugs, Buzz and Crunchy, are siting on a spinning disk. The disk of radius 7.5 m spins with an…

A: Angular velocity ω = 90 degrees/ sec = π/2 rad/s  = 1.57 rad/s

Q: A circular loop of one turn carries a current of 5.00A. If the magnetic field B at the centre is…

A:

Q: Draw the vector C⃗=A⃗−B⃗. The orientation and length of the vector has to be accurate.

A:

Q: Two particles are fixed to an x axis: particle 1 of charge q₁ = 2.45 × 10-8 C at x = 22.0 cm and…

A:

Q: A particle has a mass of 1.88E-28 kg and it travels at a speed of 0.971c, where c is the speed of…

A:

Q: A charge q1 = −2.5 nC is initially a distance r1 = 5.7 cm away from a stationary charge q2 = +3.1…

A:

Q: Find the charge on the capacitor in an LRC-series circuit at t= 0.05 s when L = 0.05 h, R = 402, C =…

A:

Q: The frequency of a wave is directly proportional to its wavelength.  True False

A:

Q: An asteroid weighing 2,356 kg reaches a velocity of .191 c. Find it's kinetic energy. Show the…

A:

Q: Q1/ R1= 5 k ohm R2=15 k ohm R3= 20 k ohm R4= 10 k ohm R5= 20 k ohm I = 5 mA Find: a) I1 , I2 , I3 ,…

A: Given value--- R1= 5 k ohm R2=15 k ohm R3= 20 k ohm R4= 10 k ohm R5= 20 k ohm I = 5 mA . We have…

Q: Problem 3. An n-type MOSFET with an oxide layer thickness of 20 nm, a gate length of 1 μm, k' = 100…

A:

Q: A truck moving west at a constant speed, in an inelastic collision, collides with a small car moving…

A: Given A car and a Truck collide with each other inelastically. We have to find 1. Greater change in…

Q: A particle has a mass of 1.6E-27kg and a momentum of 2.2E-18 kg.m/s. What is the speed of the…

A: Given:      Mass of particle(m) = 1.6×10-27 kg     Momentum of particle(p) = 2.2×10-18 kg.m/s

Q: At amusement parks, there is a popular ride called "barrel of fun," where the floor of a rotating…

A:

Q: If a flea can jump straight up to a height of 0.440 m, (a) What is its initial speed as it leaves…

A:

Q: A photon scatters off of an electron with an angle of 72.5 degrees. What is the change in wavelength…

A: According to the Compton scattering equation, we have Δλ=hmec(1-cosθ)

Q: (a) How fast (in m/s) must a 4500 kg elephant move to have the same kinetic energy as a 65.5 kg…

A:

Q: A hollow ball of mass m = 2.0 kg and radius r rolls without slipping along a loop-the-loop track,…

A:

Q: car of mass 850 kg traveling at 32 m/s hits a bike of mass 175 kg traveling in the opposite…

A:

Q: When our cars collide, they usually don't fuse together, so does that mean that their collision is…

A: An encounter or interaction between particles or objects that results in an exchange of energy…

Q: Says both answers are wrong

A: (a) By work energy theorem, (1/2)kx2 + (mgsinθ)x = (1/2)mv2 (1/2)*180*0.182 + (1.7*9.8*sin36)*0.18 =…

Q: 2. A quarterback throws a pass at an angle of 35° above the horizontal with an initial speed of 25…

A: The distance is 52.22 m

Q: ing wi incline of angle = 36°. The lower end of the incline is distance D = 0.98 m from the end of…

A:

Q: An 8.0-g bullet is shot into a 4.0-kg block, at rest on a frictionless horizontal surface (see the…

A: Given Mass of the bullet is m=8.0 g=8.0×10-3 kg Mass of the block is M=4.0 kg Compression of the…

Q: What is the maximum speed (in m/s) of a 4.9 g particle that oscillates between x = 2.0 mm and x =…

A: mass (m) = 4.9 g = 0.0049 kg the oscillation is between 2 mm and 8 mm The potential energy in units…

Q: You have 12 kg of a radioactive substance. Ten years later, you find that you only have 3 kg left.…

A:

Q: A car drives horizontally off the edge of a cliff that is 68.1 m high. The police at the scene of…

A:

Q: A satellite is 100 miles above the earth.  It has a mass of 100 kg.  If the mass of the satellite…

A: Given data:  Distance (r) = 100 miles Mass of satellite (m) = 100 kg New mass of the satellite (m')…

Q: A proton traveling at 32.9° with respect to the direction of a magnetic field of strength 2.27 mT…

A:

Q: Do a graph based on the table. X-axis (Length of the Pendulum) and Y-axis (square of the period)…

A:

Q: Doing some physics homework and am kind of stumped here!

A:

Q: Neglecting air resistance, what is the speed (in m/s) of an object just before striking the ground…

A: Given data:  Initial velocity (u) = 0 m/s Time (t) = 4.4 s Air resistance is negligible Required:…

Q: Point A in (Figure 1) is 6.0 mm from the wire. Assume that the wire is very long and that all other…

A:

Q: A skull fragment from an archeological dig is found to have an activity per gram of carbon that is…

A:

Q: A uranium nucleus 238U(initially at rest) decays into a thorium nucleus 234Th and an alpha…

A: Since the uranium nucleus is initially at rest, the velocity of the uranium will be zero, and…

Q: nd the area of the coil is 0.25 m². The coil is rotated ate of 100 cycles/sec in a magnetic field of…

A: Peak value is defined as the maximum value reached by an alternating quantity in one cycle is known…

Q: 98. The work function of a metal is 1 eV. Light of waveleng 3000 Å is incident on this metal…

A: Given value--- work function = 1 eV. incident wavelength = 3000 A. We have to find---  The…

Q: Assume that I = 12 A. (Figure 1) You may want to review (Pages 803 - 806). Figure I а. b. С. [2.0 cm…

A: Given value--- I = 12 Amp. We have to find--- magnetic field at point a ?

Q: Two light waves of the same frequency start out in phase (with amplitudes going up at the same…

A: Path difference between two wave =600nm Wavelength of light =400nm

Q: An AC voltage source and a resistor are connected in series to make up a simple AC circuit. If the…

A:

Q: You and your housemate have an argument over the cost of the electric bill. You want to turn off the…

A:

Q: A box of mass mis pulled with a constant acceleration a along a horizontal frictionless floor by a…

A:

Q: Vector-Valued Function r(t) = -ti + 5tj + 2tk O 5 kk ** 2 Interval [0, 1] Find its length over the…

A: Solution: Given that , vector valued function r(t)=ti+5tj+2tk     interval [0,1] since the length of…

Q: Given the two vectors shown in the figure, calculate a) 2.00(B-C) b) -5.00 (B × C) There are no…

A:

Q: A 305-m length of wire stretches between two towers and carries a 180-A current. Determine the…

A:

Q: 30 kg box is placed on a 1.9 m tall shelf. a). What is the gravitational potential energy of the…

A: mass = m = 30kg height = h = 1.9 m

Q: The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.33…

A:

Q: Given the wavelength, find the frequency in Hz 2.33x10^-7 m 635 nm 3.21x10^-9m

A: Given:- The wavelength  of a wave is  1) λ1 = 2.33×10-7 m  2) λ2= 635 nm 3) λ3= 3.21×10-9 m  Find:-…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.