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A gold nucleus contains 197 nucleons packed tightly against each other. A single nucleon (proton or neutron) has a radius of about 1.3 x 10-15 meter. Determine the approximate radius of the gold nucleus. (Hint: Remember that the volume of a sphere is (4/3)r3).
A 1.75 kg block at rest on a ramp of height h. When the block isreleased, it slides without friction to the bottom of the ramp, andthen continues across a surface that is frictionless except for arough patch of width 10.0 cm that has a coefficient..
The oldest artificial satellite in orbit is Vangaurd I, launched March 3, 1958. Its mass is 1.60 kg. In its initial orbit its minimum distance from the center of the Earth was 7.02 Mm and its speed at this perigee point was 8.23 km/s.
A thin, 80.0 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.300 J of kinetic energy
A high-voltage transmission line with a resistance of 0.33 omegacap.gif/km carries a current of 1040 A. What is the power loss due to resistance in the line
If a rocket in gravity- free outer space has the same thrust at all times, is its acceleration constant, increasing or decreasing? If the rocket has the same acceleration at all times, is the thrust constant, increasing or decreasing?
A projectile (mass = 0.235 kilogram) is fired at and embeds itself in a target (mass = 1.26 kilogram). Obtain what percentage of the projectile's incident kinetic energy does the target (with the projectile in it) carry off after being struck
A thin film of MgF2(n=1.38) is deposited on glass thus that it is anti reflecting at a wavelength of 580 nanometer under normal incidence. Find what wavelength is minimally reflected
A 68 kg person sits on a 4.0 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.2 cm in diameter . Find the pressure exerted on the floor by each leg of the chair, assume the weight is evenly distributed.
Consider three resistors with unequal resistances connected in series to a battery. Which of the following statements are true? 1. The current flowing through each of the resistors is the same and is equal to the current supplied by the battery.
Explain how to calculate the angular velocity of second, minute and hour hands of the clock using the formula delta theta/delta t
In a closed subway car, a girl holds a helium-filled balloon by a string. While the car is travelling at constant velocity, the string of the balloon in exactly vertical.
A 1.80 m tall man lifts a 2.00 kilogram book from the ground therefore it is 2.40 meter above the ground. Find the potential energy of the book relative to the top of the man's head
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