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In a certain region, the earth's magnetic field has a magnitude of 4.7 × 10-5 T and is directed north at an angle of 69° below the horizontal. An electrically charged bullet is fired north and 13° above the horizontal, with a speed of 500 m/s. The magnetic force on the bullet is 3.5 × 10-10 N, directed due east. Determine the bullet's electric charge, including its algebraic sign (+ or -).
A small cube, s=0.25m, sits on a surface where a uniform electric field of 250.0 N/C is directed downward at a 35.00 angle to the horizontal, Find the flux through either of the two sides for which flux is maximum
calculate the work done on a charge Q. If an automobile rounds this curve at 30 {rm m/s}, what is the least coefficient of static friction between tires and road needed to prevent skidding.
The magnetic force per meter on a wire is measured to be only 21% of its maximum possible value
Suppose molecules of an ideal gas are escaping by effusion through a small hole in a wall of an enclosure maintained at temp T. Calculate the mean kinetic energy of a molecule in the effusion beam Ue
A long, current-carrying solenoid with an air core has 1750 turns per meter of length and a radius of 0.0175 m. What is the mutual inductance of this system
Find out the vertical component of the reaction force
A tortoise can run with a speed of 14.0 cm/s, and a hare can run 20 times as fast. In a race, What is the length of the race
A 3.3-m-diameter merry-go-round with rotational inertia 100kg?m2 is spinning freely at 0.60rev/s. Determine the total energy lost to friction
According to Equation 20.7, an ac voltage V is given as a function of time t by V = Vo sin 2ft, what is the smallest value of the time at which the voltage equals one-half of the peak-value
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
According to the equipartition theorem , the average energy of any degree of freedom is 1/2 kT, Estimate the root mean square speed of a helium atom at 15 degrees celcius
A step-down transformer has a turns ratio of 1:10, and its primary is connected across the terminals of a standard 120-V wall socket. What power P is dissipated in the resistor
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