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An air bubble has a volume of 1.30 cm3 when it is released by a submarine 100 meter below the surface of a lake. Determine the volume of bubble when it reaches the surface? Suppose the temperature and the number of air molecules in the bubble remains constant during its ascent.
cm3
a fresnel zone plate is prepared with a drawing program and printed on a laser printer. the printed zone plate has a
What is magnetic flux through the desk surface
A long horizontal wire carries a current of 48 {rm A}. A second wire, made of 2.6 mm diameter copper wire and parallel to the first, is kept in suspension magnetically 15 {rm cm} below. Examine the magnitude of the current in the lower wire.
A mass of 200 grams stretches a spring 5 cm. The mass is the set in motion from its equilibrium position with an initial downward velocity of 20 cm/sec. assuming that there is no damping, decide the position of the mass at any time t, and decide the ..
The average person passes out at an acceleration of 7g (that is, seven times the gravitational acceleration on Earth). Assume a car is designed to accelerate at this rate. How much time (in seconds) would be needed for the car to accelerate from rest..
As observed on earth, a certain type of bacterium is known to double in number every 18 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other placed on a rocket that..
two charges are placed between the plates of a parallel plate capacitor. one charge is q1 and the other is q2 7.21c.
When you blink your eye, the upper lid goes from rest with your eye open to totally covering your eye in a time of 0.024s. Estimate the distance that the top lid of your eye moves through a blink. What is the acceleration of your eyelid? Assume it to..
A potter's wheel is rotating around a vertical axis through its center at a frequency of 2.0rev/s. What is the frequency of the wheel after the clay sticks to it? Ignore friction
A spherical balloon is made from a material whose mass is 2.57 kg. The thickness of the material is negligible compared to the 1.22-m radius of the balloon. Find the absolute pressure of the helium gas
A 0.800 m long solenoidis formed by wrapping 680 turns of wire around a hollow cylinderwith a radius of 0.130 m. calculate the energy stored in the field
a small bar magnet experiences a 2.1 x 10^-2N*m torque when the axs of the magnet is at 45 degree to a 6.00 *10^-2 T magnetic field. What is the magnitude of its magnetic dipole moment
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