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Calculate the Schwarzschild radius of a black hole with the mass of:
a) 14.51 times that of the Sun.
b) an atomic nucleus with a mass of 87 times that of a proton.
a 2.7-kg cart is rolling along a frictionless horizontal track towards a 1.4-kg cart that is held initially at rest.
determine the average value of the translational kinetic energy of the molecules of an ideal gas at a 12.0degc and b
an object is 19 cm in front of a diverging lens that has a focal length of -9 cm. how far in front of the lens should
two ocean liners with a mass of 50,000 metric tons are 50 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction
A 2.0 kg block slides on a frictionless 25o inclined plane. What are the magnitude and direction of the block's acceleration
A cosmic ray has a lifetime of 2 mirco seconds. At what minimum speed must it travel to cover a distance of 100km as measured by a stationary observer
The total energy contained in a closed, sealed, rigid can of tuna is 3000. J with a total entropy of 2.8330 J/K. The ground state total energy, total entropy, and temperature of the system are 100.0 J, 0.0275 J/K, and 20.0°C,
A uniform 250 ladder rests against a perfectly smooth wall, making a 40.0 angle with the wall. What is the friction force on the ladder at the floor
A wire of radius r and length L and resistivity ρ has a resistance R. Estimate what is the new resistance if the wire is stretched to 4 times its original length
An airplane flying at a speed of 700km/h at a height of 900m drops a relief pacakage. Assume that the horizontal velocity of the relief package at this instant is 700 km/h. What is the range of the relief package?
A photon with energy 0.50 eV is barely capable of causing a photoelectric effect when it strikes a metal plate. Find the speed of the released electron far from the nucleus
Two closely spaced circular disks form a parallel-plate capacitor. what are the diameters of the disks
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