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A plastic rod has been rubbed with a scratchy brown paper towel. You have cautiously tested the rod and found that it has a negative charge. If you place the rod on your handy dandy spinner, and then bring a magnet near it, the rod will
be repelled by the magnet
be attracted to the magnet.
depends on which end of the magnet you hold near the rod.
be neither attracted nor repelled by the magnet.
A clarinetist, setting out for a performance, grabs his 3.19-kg clarinet case (including the clarinet) from the top of the piano, Find the case\'s vertical acceleration
When a 24.0-? resistor is connected across a 12.0-V battery, a current of 482 mA flows. What is the resulting terminal voltage of the battery
The function = -38 cos(20t) (with in degrees) describes the oscillation ofa certain torsion pendulum (Figure 13-4). Assume the counterclockwise direction to be positive. Find the maximum angle to which the torsionpendulum swings;
A particular engine has a power output of 6.00 kW and an efficiency of 22.0%. Assume the engine expels 6500 J of energy in each cycle. Find the time required to complete each cycle
An alpha particle (the nucleus of helium nucleus with charge+2e and mass 4.0u (1 u = 1.66E-27) moves in a circular orbit ofradius R=12 cm in a uniform magnetic field of 0.25 T, where the magnetic field is perpendicular to the orbit plane.
At one time,television sets used "rabbit-ears" antennas. Such an antennaconsists of a pair of metal rods. The length of each rod can beadjusted to be one-quarter of a wavelengthof an electromagnetic wave whose frequency is 65.0 MHz. How long is each ..
The frequency of a light wave is the same when the light travels in two different media. Assuming that the refraction indices of the two media are 1.628 and 1.862, respectively, find the ratio of the wavelength of the light in the first medium to tha..
while the tilt angle theta equals 75 degrees is held constant, the load is slowly lifted vertically by a winch until the length of the vertical cable is negligible, and the load mass effectively sits at the upper end of the beam.
In an amusement park ride, cars are suspended from L = 4.20 m cables attached to rotating arms at a distance of D = 6.06 m from the axis of rotation. What is the angular speed of rotation
As a rocket passes your space station, it emits a flash of light. Later, it emits a second flash, which you determine was emitted three seconds later, at which time the rocket was two light seconds away. How much time separated the two flashes
Two cylindrical metal rods-one copper, the other lead-are connected in parallel with a temperature of 22.0 C at one end, what is the diameter of the copper rod
explain Which ball will hit the ground first.
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