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A 1000-turn coil of wire that is 2.3cm in diameter is in a magnetic field that drops from 0.13T to 0T in 12ms. The axis of the coil is parallel to the field. What is the emf of the coil? (ans in V)
What is the terminal speed at which the bar falls? Assume the bar remains horizontal and in contact with the rods at all times.
If you hold a laser pointer 1.1m directly above the edge of the pool, you can illuminate the goggles if the laser beam enters the water 2.5m from the edge. How far are the goggles from the edge of t
A 5.9cm -thick layer of oil (n=1.46) is sandwiched between a 1.5 -thick sheet of glass and a 2.5 cm-thick sheet of polystyrene plastic (n=1.59). How long (in ns ) does it take light incident perpend
If she did not turn around and walked due east, how many hours would it take her to reach her destination with an average velocity of 1.34m/s due west?
Over a time interval of 2.16 years, the velocity of a planet orbiting a distant star reverses in direction, changing from +20.9 km/s to -18.5 km/s. Find (a) its average acceleration (in m/s^2) durin
A beam of electrons is moving through a region of space in which there is an electric field of intensity 3.4 x 104 V/m and a magnetic field of 2.0 x 10-3 T. The electric and magnetic fields are so ori
Estimate the total path length traveled by a deuteron in the cyclotron during the (entire) acceleration process. Assume that the accelerating potential between the dees is 75.2 kV. The deuteron mass
The charging circuit for the flash system of a camera uses a 110*10^-6 F capacitor that is charged from a 240 V power supply. What is the most resistance that can be in series with the capacitor if
A 21 nF capacitor is connected across an AC generator that produces a peak voltage of 4.8 V. a) At what frequency is the peak current 44 mA?
A series RLC circuit consists of a 260 ohms resistor, a 28*10^-6 H inductor, and a 17*10^-6 F capacitor. What is the rms current if the emf is supplied by a standard 120V/60 HZ wall outlet?
What are the electric field strengths to at distances 1.0 cm, 2.0 cm, and 3.0 cm from the glass rod along the line connecting the midpoints of the two rods? Specify the electric field strength E1, E
We can model this as a discharge of the capacitor through an internal "leakage resistance." A 0.49 F capacitor charged to 3.2 V will initially discharge with a leakage current of 0.30 mA . a) What
We can model this as a discharge of the capacitor through an internal "leakage resistance." A 0.49 capacitor charged to 3.2 will initially discharge with a leakage current of 0.30 . a) What is the l
What would a voltmeter read if it were connected between the surface and a point 1.00cm from the central axis of the cylinder?
A 5.0 box is on a frictionless 45 slope and is connected via a massless string over a massless, frictionless pulley to a hanging 1.7 weight. What is the tension in the string once the box begins to
If the target were not in the way, how far would the bullet travel horizontally before hitting the ground?
The electric field at point P is zero. Does that mean that the electric potential at that point must also be zero? The electric potential at point Q is zero. Does that mean that the electric field
An 18 year old strucks a tennis ball that is departed from the racket horizontally with a speed of 28.0 m/s. Andy Roddick's strucks a tennis ball that is departed from the racket horiziontally with
A pellet gun is fired straight downward from the edge of a cliff that is above the ground. The pellet strikes the ground with a speed of . Barrett .50 Caliber is fired with the speed of 2700 feet pe
A nearsighted person, wearing identical contact lenses, has a corrected range of clear vision from 20.8 cm (near point) to (far point). The person's uncorrected near point is 9.2 cm. (a) What is the
A certain eye, when relaxed, needs a +0.67 d lens in front of the eye to form a clear image on the retina of a distant object. Where is the (virtual) object seen by the eye?
What is the image distance for the image formed by the cornea alone?
Discuss the function of a washing machine/dryer in terms of circular motions, centripetal force, and pseudo centrifugal force. Elaborate on the separation process of water from the wet cloths using