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two charges, q1 and q2 are present on a normal coordinate system ,point A is located at the orgin, q1 has a charge of 1.11 nC and is 20 cm above point A and the orgin in the positive y direction, q2 has a charge of -1.11 nC and is 20 cm away from the orgin and point A in the negative x direction.
a) what is the magnitude and direction of the electric field at point A
b) what is the electric potential at point A
An aerosol can of whipped cream is pressurized at 440kPa when it's refrigerated at 3 C. The can warns against temperature in excess of 50 C. What is the safest pressure for the can .
A resistor with an unknown resistance is connected in parallel to a 12 ohm resistor. while both resistors are connected to an emf source of 12 V, current across the unknow resistor is measured with an ammeter to be 3.0 A. What is the resistance of..
The partnership earnings before partners' withdrawals for 2005 totaled $484000. Calculate José's gross income from the partnership from the above for 2005.
Explain how far x can a man who weighs 447 n from the right support which is 1.1 m from the right side of the board before the board tips?
On a workday the average decibel level of a busy street is 65 kb, with 121 cars passing a given point every minute. If the number of cars is reduced to 33 cars every minute on a weekend, what is the decibel level of the street.
For the situation, the magnetic field changes with time according to the expression B = (2.00t3 - 4.00t2 + 0.800)T, and r2 = 2R = 5.00 cm. (a) Calculate the magnitude and direction of the force exerted on an electron located at point P2 when t = 2.00..
A worker stands still on a roof sloped at an angle of 21° above the horizontal. He is prevented from slipping by a static frictional force of 400 N. Find out the mass of the worker.
A sample of paramagnetic material containing \(10^{25}\) atoms is placed in an external field magnetic field of 1 tesla at room temperature
A capacitor that is initially uncharged is connected in series with a resistor and a 400.4V emf source with negligible internal resistance, What is the resistance of the resistor
A 240g block on a 60cm-long string swings in a circle on a horizontal, frictionless table at 70rpm.
when it falls back it hits the ground with speed v1=50m/s. The mass of the ball is m=20g. Illustrate what is the total work done by the drag force while the ball is in the air?
Calculate the coil's self-inductance. If the current decreases uniformly from 5.00 to 2.00 in 3.00, estimate the self-induced emf in the coil.
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