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Q. Two 9.0 cm diameter charged disks face each other, 18 cm apart. Both disks are charged to - 70 nC.
What is the electric field strength at the midpoint between the two disks?
What is the electric field strength a point on the axis 5.0 cm from one disk between them?
Astronomers discover a binary star system that has a period of 93.0 days. The binary star system consists of two equal-mass stars, each with a mass twice that of the sun, that rotate like a dumbbell about the centre of mass at the midpoint between..
A 600 turn solenoid, 25 cm long, has a diameter of 2.8 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.48 s, what would be the induced emf magnitude in the..
Velocity and time for the moving particle.
Given that 12g of carbon combines with 16g of oxygen to form carbon monixide, how various grams of carbon monoxide can be made from 48g of carbon and 48g oxygen.
An ion source is producing 6Li ions, which have mass 9.99 x10-27 kg and charge +e. The ions are accelerated by a potential difference of 30 kV and pass horizontally into the region in which there is a uniform vertical magnetic field of magnitude B..
An oil drop whose mass is determined to be 3.3x10^-15 is held at rest between two large plates separated by 1cm while the potential difference between them is 340 V. How numerous excess electrons does this have here.
A dockworker applies a constant horizontal force of 84.0\({\rm N}\) to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 12.5\({\rm m}\) in a time 4.80\({\rm s}\)
Resistance and potential difference in an electrical circuit.
Calculate the radius of the path, direction of the force experienced by the electron and the path of the electron through the magnetic field.
A 21 kg solid door is 220 cm tall, 94 cm wide. What is the door's moment of inertia for rotation about the vertical axis inside the door, 17 cm from one edge.
A spherical Christmas tree ornament is7.18 cm in diameter.What is magnification of the image ofan object placed 8.6 cm away from the ornament.
A gas expands while 502 J of energy is added to it as heat. The expanding gas does 422 J of work on its surroundings.
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