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If our Sun (mass = 1.99 x10^30 kg, radius = 6.96 x10^88 m) were to collapse into a neutron star (an object composed of tightly packed neutrons with roughly the same density as neutrons within a nucleus), what would the new radius of our "neutron-sun" be? (Assume that the density of a nucleus is 2.3 x 10 ^17 kg/m3.)
The operator of a linear accelerator tells a tour group that it is used to give protons energy of 860MeV. What is the value for the proton's total energy
what is the new force between the objects. if Andromeda contains roughly the same number of stars and attracts the Milky Way with a gravitational force of 2.4*10^30N.
two identical 25 g particles each carry 2.0 uc micro coulombs of charge. one is held fixed and the other is placed 1.0
You're using a rope to pull a sled at constant velocity across level snow,with coefficient of kinetic friction 0.050 between sled and the snow. With what force should you pull with the rope horizontal
Two billiard balls of equal mass undergo a perfectly elastic head-on collision. what will be their speeds after the collision
The average monthly household consumption of electricity comes out as 1000 kWh. How much mass would have been converted
wo point charges of equal magnitude are 8.2apart. At the midpoint of the line connecting them, Find the magnitude of the charges
An iron ball hangs from a 21.5-m steel cable and is used in the demolition of a building at a location where the acceleration due to gravity is 9.78 m/s2. find the maximum speed of the ball during its swing
What is the internal resistance of an automobile battery that has an emf of 12.0 V and a terminal voltage of 16.5 V while a current of 7.50 A is charging it
A sealed glass bottle at 27°C contains air at atmospheric pressure and has a volume of 30 mL. It is then tossed into an open fire. When the temperature of the air in the bottle reaches 200°C,
an airplane flies 200 km due west from city a to city b and then 285 km in the direction of 32.5deg north of west from
A small circular hole 6.90 mmdiameter is cut in the side of a large water tank, 19.0 m below the water level in the tank. The topof the tank is open to the air. Find the volume discharged per unit time
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