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Q. A magnetic field near the ceiling points up and is decreasing. Looking up at the ceiling, does the non-Coulomb electric field curl clockwise or counter-clockwise?
Q. A 239 g ball is tied to a string. It is pulled to an angle of 6.80 ^circ and released to swing as a pendulum. A student with a stopwatch finds that 11 oscillations take 11.0 s. how long is the string?
A continuous line of charge lies along an x axis, extending from x = +x0 to positive infinity. The line carries charge with the uniform linear charge density λ0. What are the magnitude and direction of the electric field at the origin.
A 253 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal.
How much energy is necessary to bring the system back
With the battery disconnected the compass needle points to the right, in the plane of the coil. The apparatus is located near equator, where the Earth's magnetic field B Earth is horizontal, with a magnitude of 4×10-5 tesla. (Presume that B Earth ..
A 6 ornament is hanging by a 1.30 wire when it is suddenly hit by a 3.00 missile travelling horizontally at 10.0. The missile embeds itself in the ornament throughout the collision.
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
A baseball is hit with a speed of 33.0 ms-1 at an angle of 56.0 degrees. It land's on the flat roof of a nearby building with a height of 13 m. If the ball was hit when it was 1.7 m above the ground, what horizontal distance does it travel before it ..
With the power supply disconnected, the dielectric material is removed and the potential difference between the plates is measured to be 500 V. What is the dielectric constant of the material that was at first used to fill the gap between the plates.
Find out the change in entropy of the system
The George Washington bridge, that spans the Hudson River between New York and Jersey, is 4670 feet long and is made out of steel, How much does it expand in length between winter and summer.
A rifle with a barrel length of 62 cm fires a 12 g bullet with a horizontal speed of 460 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 15 cm.
In uniform circular motion, a particle undergoes motion in a circular path with a constant speed. Which of the following statement is false and why?
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