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Assume that the protons in a hot ball of protons each have akinetic energy equal to kT, where k is theBoltzmann constant and T is the absolute temperature. IfT = 2.7 107 K, what is the least separation anytwo protons can have?
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As a crude model for lightning, consider the ground to be oneplate of a parallel-plate capacitor and a cloud at an altitude of470 m to be the other plate. How much charge can the cloud hold
A 1 mF, a 2 mF, and a 3 mF capacitor are connected in series, the combination being connected across a 9 volt battery. Which capacitor has the greatest voltage?
An object's true weight is 123 N. When it is completely submerged in water, its apparent weight is 82 N. what is the density of the object
A 5 kgblock is placed near the top of a frictionless ramp, which makes an angle of30odegrees to the horizontal. Find the magnitude of the maximum compression of the spring
It takes 2.80 s for a small ball with a mass of 0.060 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released
Using a vernier caliper of least count 0.01 cm, the length of a cylinder is measured to be 3.76 cm, and its diameter 1.28 cm. Find the volume of the cylinder. Calculate the probable percent error in the length. Calculate the probable percent error..
A satellite moves in a circular orbit around Earth at a speed of 4714 m/s. Determine the satellite's altitude above the surface of Earth
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
It will be shown later that the scale height, H, is proportional totemperature, T. For an average temperature of 255 K, the scaleheight is 7.5 km assuming an isothermal atmosphere
A 640- hollow ball 19 in diameter is suspended by a wire and is undergoing torsional oscillations at a frequency of 0.78 What is the torsional constant of the wire
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on the ground
A 8 kg stone is dropped from a height of 170 m. Find its kinetic and potential energies when it is halfway to the ground
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