Physics, 25.03.2020 17:32 meganwintergirl
Several forces act on an object at rest. It is known that the sum of the forces acting on the object is zero. Which statement is necessarily true?
Question 7 options:
The object's center of mass may move in such a way that the object will roll without slipping.
The object's center of mass may accelerate, but the object will remain in the same orientation.
The object's center of mass may accelerate and the object may begin to rotate.
The object will remain stationary.
The object's center of mass will not accelerate, but the object may begin to rotate.
Answers: 1
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Physics, 22.06.2019 14:30
Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?
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