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Tom [10]
3 years ago
7

O be useful in science, a hypothesis must be *

Physics
2 answers:
Lorico [155]3 years ago
4 0
Answer: C the hypothesis must be testable
shepuryov [24]3 years ago
3 0

Answer:

the answer is c testable

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What advantages does an electromagnet have over a permanent magnet?
KonstantinChe [14]
Electromagnets can be turned off, this makes it easier to release things from the magnetic field. 

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4 0
3 years ago
Please help me to do this problem
Novosadov [1.4K]

Answer:

we got time and velocity over time.

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for a triangle with known base and height it's

4*10 / 2

distance traveled is 20

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3 years ago
We estimate the mass of the galaxy by observations of its ________ curve.
seropon [69]
The appropriate response is the rotation. There are most likely no less than 100 billion planets in the Milky Way. The Solar System is situated inside the circle, around 26,000 light-years from the Galactic Center, on the inward edge of one of the winding molded centralizations of gas and tidies called the Orion Arm.
8 0
3 years ago
Two light bulbs are installed in two sockets, the sockets are connected in series, and power is then applied to the combination
Arisa [49]

Answer:

False

Explanation:

<em>If one of the bulbs is removed from the series, the other bulb will not come on at all.</em>

This is because the removal of one of the bulbs would interrupt the flow of current though the entire circuit.

Hence, that the other one will get brighter if one of two bulbs in a circuit is removed from its socket is not true.

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