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A thin infinite nonconducting sheet with uniform surface charge density σ = 10.0•10-6 C/m2 lies in the y-z plane. A charge Q = 7.50 μC is located on the x axis at a distance x= 30.00 cm from the sheet as shown. Find the magnitude of the electric field at a point P with the coordinates x= y= 30.00 cm, z= 0.What work must be done against the electric forces in order to move the charge Q from the position x= 30.00 cm to the position x= 10.00 cm on the x axis?
your medieval history class is constructing a trebuchet a catapult-like weapon for hurling stones at enemy castles. the
An infinitely long thin wire carries a line charge density lambda=65 nC/m. Obtain the potential difference between points 2 m and 7 m on a perpendicular radius to the axis of the wire
At an air show, a jet plane has velocity components vx = 700km/h and vy = 460km/h at time 3.95sand vx = 883km/h and vy = 355km/h at time 7.17s. Find the x component of the plane's average acceleration
A dart player throws a dart horizontally at a speed of 12.4 m/s. The dart hits the board 0.32 m below the height from which it was thrown. How far away is the player from the board?
What is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of static friction between tires and road is 0.45.
A Marconi antenna, used by most AM radio stations, consists of the top half of a Hertz antenna, What is the height of the Marconi antennas for radio stations broadcasting at 519 kHz
Calculate the energy needed to accelerate a spaceship with a mass m = 25 × 103 kg toa speed of 0.40c. Compare this number with the approximate annual energy usage ofEarth, 1021 J
The output stage of a high-fidelity amplifier has an internal impedance of 162 ohm. determine what must be the turns ratio of the output transformer for maximum power transfer
The position of a mass-on-a-spring oscillator is given by y = A sin(25t) where the value of t is in seconds, and A= 0.35 m. Find the maximum kinetic energy of an oscillator of mass 1.7 kg
A 55cm3 block of iron is removed from an 800 Degrees C furnace and immediately dropped into 200 mL of 20 Degrees C water. What fraction of the water boils away
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 76.0 rev/min in 3.50 s.
A 4.5 W flashlight bulb draws 750 mA. At what voltage does it operate
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