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Calculate the magnitude of the torque on the dipole when the dipole moment is (a) parallel to, (b) perpendicular to, and (c) antiparallel to the electric field.
Earth's atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. If the protons all passed through the atmosphere, each square meter of Earth's surface would inter
(a) If the radius of the Gaussian surface were doubled, how much flux would pass through the surface? (b) What is the value of the point charge?
Estimate the magnitude E of the electric field just off the center of the plate (at, say, a distance of 0.50 mm from the center) by assuming that the charge is spread uniformly over the two faces of
An infinite line of charge produces a field of magnitude 4.90 x 104 N/C at a distance of1.9m. Calculate the linear charge density.
What is the astronaut's tangential acceleration during the first 40.0s ? How many g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80m/s^2 of accele
Two positive point charges. each of which has a charge of 3.5x10^-9C are located at y=0.80m and y= - 0.80m. Find the magnitude of the resultant electrical force on a charge of 3.0x10^-9 located at
A rock is dropped into a deep hole and 2.5 s later the sound of striking the bottom is heard. If the speed of sound is 340 m/s, what is the depth of the hole?
A flat sheet of paper of area 0.200 m2 is oriented so that the normal to the sheet is at an angle of 80° to a uniform electric field of magnitude 21 N/C. (a) Find the magnitude of the electric flu
A rubber ball dropped from a height of 2 bounces back to a height of 1. Draw the ball's position and velocity graphs, stacked vertically, from the instant you release it until it returns to its maxi
Consider a point charge q = 5.0?C, point A at distance d1 = 1.050 m from q, and point B at distance d2 = 0.500 m. If these points are diametrically opposite each other,what is the electric potentia
How does the energy stored in a capacitor change if each of the following happens? a) The potential difference is doubled, while the capacitance is held constant. b) The charge on each plate is dec
A vector that is 7.4 units long and a vector that is 5.4 units long are added. Their sum is a vector 12.3 units long. A) determine the angle between the original two vectors.
The normal human eye has maximum visual acuity with a pupil size of about 3. For larger pupils, acuity decreases due to increasing aberrations;
The planet Neptune is 4.5 X10^12m from the earth. Its diameter is 4.9 x 10^7m. What diameter telescope objective would be necessary to just barely see Neptune as a disk rather than as a point of li
A charge of 3.0 mc and a second charge are initially far apart. If it takes 29J of work tobring them to a final configuration in which the 3.0 mc is at x+1.0 mm, y-1.0mm, and the other charge is at
What will be the total horizontal distance traveled by the ball? What is the x-component of the final velocity of the ball? What is the y-component of the final velocity of the ball when it lands ba
When the wire is removed, the spheres repel each other with an electrostatic force of 0.0360N. Of the initial charges on the spheres, with a positive net charge, what was (a) the negative charge on
Another student is 4.0 m away from the talkers. What sound intensity does the other student measure? Assume that the sound spreads out uniformly and undergoes no significant reflections or absorptio
A 8.0-m long wire with a mass of 10 g is under tension. A transverse wave for which the frequency is 570 Hz, the wavelength is 0.10 m, and the amplitude is 3.7 mm is propagating on the wire. The max
You are generating traveling waves on a stretched string by wiggling one end. If you suddenly begin to wiggle more rapidly without appreciably affecting the tension, you will cause the waves to move
If your pupil diameter is 2 , as it would be in fairly bright light, what is the smallest diameter circle that you can barely see as a circle, rather than just a dot, if the circle is at your near
A point particle that has a charge of 18.0 µC is located at x = 0, y = 0 and a point particle that has a charge q is located at x = 14.4 cm, y = 0. The electric force on a point particle that
Imagine a truck with a mass of 22 metric tons (t) (1 t=1,000 kg) barrelling down a highway at a speed of 59 mi/h. What is the truck's momentum in kilograms? What is its kinetic energy in kilograms?