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Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 2.89E+28 kg and 1.08E+3 m. Calculate the density of such a star.
Three moles of a monatomic ideal gas are heated at a constant volume of 1.16 m3. The amount of heat added is 3.33 x103 J. (a) What is the change in the temperature of the gas? (b) Find the change in itsinternal energy. (c) Determine the change inp..
illustrates several of the concepts used in this problem. A single electron orbits a lithium nucleus that contains three protons (+3e). Determine the kinetic energy of the electron
A basketball player is 15 {\rm ft} horizontally from the center of the basket, which is 10 {\rm ft} off the ground. At what angle should the player aim the ball
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 58.05 diopters, what is the height of the image on the retina
What value does this give for the speed of sound in air. What is the speed of the ball at that point.
An 80.0-kg man jumps from a height of 2.50 m onto a platformmounted on springs, What is the man's speed at the instant he depresses the platform 0.120 m
A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 37° C from 192° C, What was the net radiant power of the baking dish when it was first removed from the oven
Three solid plastic cylinders all have radius 2.50 cm and length 6.00 cm. Find the charge of the cylinder
a student standing on a stationary skateboard tosses a textbook with a mass of mb 1.55 kg to a friend standing in
A hawk flies in a horizontal arc of radius 14.4 m at a constant speed 3.55 m/s. (a) Find its centripetal acceleration. (b) It continues to fly along the same horizontal arc, but increases its speed at the rate of 1.35 m/s2. Find the acceleration in t..
Leigh is doing a knee extension exercise using a 100 N dumbbell strapped to her ankle 40 cm from her knee joint. For this position, what torque is created by the dumbbell about her knee joint axis
A body moves with shm and passes two points A and B 56cmapartwith the same velocity,having occupied 2s in passing from A toB. Find the period and amplitude of the oscillation
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