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mafiozo [28]
3 years ago
8

Why do you believe knowing how elements and compounds react together Is essential In every day matters?

Physics
1 answer:
AnnZ [28]3 years ago
3 0

Answer:

maybe you might mix something up together that could cause a fire hazard or any kind of hazard or chemical that no one knows about

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A particle moves on a line away from its initial position so that after t hours it is s = 6t2 + 2t miles from its initial positi
docker41 [41]
<span>32 mph
   First, let's calculate the location of the particle at t=1, and t=4
 t=1
 s = 6*t^2 + 2*t
 s = 6*1^2 + 2*1
 s = 6 + 2
 s = 8 t = 4
 s = 6*t^2 + 2*t s = 6*4^2 + 2*4
 s = 6*16 + 8
 s = 96 + 8
 s = 104
   So the particle moved from 8 to 104 over the time period of 1 to 4 hours. And the average velocity is simply the distance moved over the time spent. So:
 avg_vel = (104-8)/(4-1) = 96/3 = 32
   And since the units were miles and hours, that means that the average speed of the particle over the interval [1,4] was 32 miles/hour, or 32 mph.</span>
6 0
3 years ago
Graph the following data on the graph, then use the graph to determine the half-life of this isotope.
Harlamova29_29 [7]

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4, 56

Explanation:

Hope this helped!

7 0
3 years ago
When a wire loop is connected to a battery, what is produced in the loop?
Vinil7 [7]

Answer:

magnetic field

Explanation:

3 0
3 years ago
Identifying Applications of Electromagnetic Waves
Anuta_ua [19.1K]

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gamma ray-destruction of cancer cells

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Explanation: on edg

4 0
3 years ago
5. How many kilowatt-hours of energy would be used by a 40 W bulb that runs for 10 hours every
Nady [450]

Answer:

E = 0.4 kWh

Explanation:

Given that,

The power of a bulb, P = 40 W

Time, t = 10 hours

We need to find the energy used by the bulb. Let it is equal to E. So,

E=P\times t\\\\E=40\times 10\\\\E=400\ W-h\\\\or\\\\E=0.4\ kWh

So, 0.4 kWh of energy would be needed.

6 0
3 years ago
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