3 years ago

Scientists can use spectral analysis of stars to determine which of the following?

Physics

2 answers:

stellarik [79]3 years ago

6 0

The answer would be A)

RSB [31]3 years ago

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Answer: it’s not line spectra

Explanation:

PENN foster

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Anna pushes a box with a force of 8.00 newtons. She generates a power of 3.00 watts. How much time does it take for Anna to move

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Power is the energy in a system per time. It will have units of Watts which is equal to joules per second. It can be expressed as:

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Kinetic friction (also referred to as dynamic friction) is the force that resists the relative movement of the surfaces once they're in motion.
https://www.khanacademy.org › stat...
Static and kinetic friction example (video) | Khan Academy

Answer a would be static friction
Answer b is fluid friction
(Air resistance is fluid friction. Fluid friction is the friction experienced by objects which are moving in a fluid and the air is a fluid.)
Answer c is static friction
ANSWER D IS KINETIC FRICTION

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2 years ago

_________ = voltage / resistance a. power b. energy c. charge d. current

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c.charge due to the reaction process between the two

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