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An object is placed 53.0 cm from a screen.
(a) Where should a converging lens of focal length 5.0 cm be placed to form an image on the screen? shorter distance cm from the screen farther distance cm from the screen
(b) Find the magnification of the lens. magnification if placed at the shorter distance magnification if placed at the farther distance
A plate carries a charge of -4 ?C, while a rod carries a charge of 2.50 ?C. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
To stretch a certain spring by 3.00cm from itsequilibrium position requires 9.50J of work, What is the force constant of this spring
The biochemistry that takes place inside cells depends on various elements, such as sodium, potassium, and calcium, that are dissolved in water as ions, What is the resistance of the ion channel
a long horizontal wire carries a current of 48 amps. A second wire, made of 2.5 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 cm below. Determine the magnitude and direction of the current in the lower wi..
What is the final temperature of the water and zinc.
Ice at -13.7 °C and steam at 114 °C are brought together at atmospheric pressure in a perfectly insulated container. After thermal equilibrium is reached, the liquid phase at 43.3 °C is present. Ignoring container and equilibrium vapour pressure of t..
The displacement of a particle moving under uniform acceleration is some function of elapsed time and acceleration. Suppose we write this displacement as: s=ka^mt^n where k is the dimensionless constant.
One long wire lies along an x axis and carries a current of 42 A in the positive x direction, What is the magnitude of the resulting magnetic field at the point (0, 2.0 m, 0)
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
A train is travelling up a 5 degree incline at a speed of 2.2 m/s while the last car breaks free and begins to coast without friction. a) How long does it take for the last car to come to rest momentarily? b) How far did last car travel before mom..
Give the force exerted on the bag, to validate your reply.
A 24-V battery is connected in series with a resistor and an inductor, Find the energy stored in the inductor when the current reaches its maximum value
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