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Physics, 22.06.2019 13:00
The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot
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Physics, 22.06.2019 13:20
Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron
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Physics, 23.06.2019 13:00
The maximum wavelength of light required to eject an electron from zinc is 270nm. calculate the threshold frequency of zinc.
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Physics, 23.06.2019 13:00
Aparticle is moving around in a circle and its position is given in polar coordinates as x = rcosθ, and y = rsinθ, where r is the radius of the circle, and θ is in radians. from these equations derive the equation for centripetal acceleration.
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As the pendulum swings through the origin, it has a speed of v0 = 1.1 m/s. If the mass on the end of...
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