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Aneli [31]
3 years ago
15

Where is hydrogen grouped on the periodic table?

Physics
2 answers:
kirill [66]3 years ago
5 0

Answer:

i got c

Explanation:

k0ka [10]3 years ago
4 0

Answer:

I think it is D but don't count on it

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shtirl [24]

Answer:

b!!!! did it help? :)))

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15.One girl was involved in a bus crash. She told the police that she was seated in the last line of seats and that when the bus
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Answer: It is not likely.

Explanation:

When the bus is moving forward, all the objects inside of it also are moving forward.

Now, as the objects inside the buss are not fixed to the bus, if the bus suddenly stops the objects inside of it will keep moving forward, because of the conservation of the momentum, defined as the quantity of motion (Similar to when you are in a car and it suddenly stops, you can feel the forward impulse).

Then is not likely that, in a case where the bus stops suddenly, an object inside the bus flies backward in opposite direction to the previous movement of the bus.

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3 years ago
The speed of a wave is 2ms, and its wavelength 0.4 meters. What is the period of the wave?
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5

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2 years ago
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How long will it take to travel 200 m traveling at 10 m/s? Follow example below.
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Answer:

variables  - d = 200m \: v = 10 m {s}^{ - 1}  \\ equation \:   - v =  \frac{d}{t}  \\ 10 = \frac{200}{t}  \\ cross \: multiply \\ 10t = 200 \\  \frac{10t}{10}  =   \frac{200}{10}  \\ t = 20s

It will take 10 seconds to travel 200m at a speed of 10m/s

Explanation:

HOPE THAT THIS IS HELPFUL.

HAVE A GREAT DAY.

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2 years ago
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An electron is emmited by an atomic nucleus in the process of...
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I’m pretty sure it’s Radioactive decay
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