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Suppose a spacecraft is sent to study an object somewhere in our Milky Way galaxy. This spacecraft finds out that the object has a radius of 2576 km and a mass of 1.3452 x 1023 kg. Assuming the object is a sphere, what is the density (g/cm3) of this object?
An electron moves to North in a region of space where the electricfield is uniform. The electric field is 1N/C on the north direction. IF the magnitude of the difference in the electricpotential between the starting and finishing points of the electr..
During a workout, the football players at Rutgers State University ran up the stadium stairs at a steady pace in 58 s. estimate the average power output on the way up
Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong...
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection
A beam of neutrons with a de Broglie wavelength of 0.260nm diffracts from a crystal of table salt, which has an interionic spacing of 0.280nm, What is the speed of the neutrons
question a railroad car of mass 2.52 x 104 kg is moving with a speed of3.95ms. it collides and couples with three other
A 103 kg fullback runs at the line of scrimmage. A constant force of 3399 N must be exerted on him to bring him to rest in a distance of 1.2 m in a time interval of 0.27 s. How fast was he running initially
A rubber ball is shot straight up from the ground with speed V0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest
For a long solenoid, the magnetic field strength within the solenoid is given by the equation where t is time in seconds. find the radius of the solenoid
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), Determine the radius of the path
question a 5.3 -thick layer of oil n1.46 is sandwiched between a 1.1cm -thick sheet of glass and a 2.1cm -thick sheet
A sailor strikes the side of his ship just below the waterline. How deep is the ocean at this point
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