Physics, 09.11.2020 17:00 elishane864
A race car with a 255 hp (1.90 × 105 W) engine is able to accelerate from rest to its top speed in 9.00 s. How much work does the car's engine do in this interval of time?
Answers: 2
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Aballet student who learns with the of his instructor is demonstrating learning.
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Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.
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A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?
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Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
Answers: 1
A race car with a 255 hp (1.90 × 105 W) engine is able to accelerate from rest to its top speed in 9...
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