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Murljashka [212]
2 years ago
10

Can sumbody help me wit dis

Physics
1 answer:
stepladder [879]2 years ago
3 0
C, exothermic reaction. These types of reaction releases heat so that you can heat up your ready-to-eat meals.
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What is the frequency of blue light that has a wavelength of 446 nm?
Maslowich
When I went through with the math, the answer I came upon was: 
<span>6.67 X 10^14 </span>

<span>Here is how I did it: First of all we need to know the equation. </span>

<span>c=nu X lamda </span>
<span>(speed of light) = (frequency)(wavelength) </span>
<span>(3.0 X 10^8 m/s) = (frequency)(450nm) </span>

<span>We want the answer in meters so we need to convert 450nm to meters. </span>
<span>450nm= 4.5 X 10^ -7 m </span>
<span>(3.0 X 10^8 m/s) = (frequency)(4.5 X 10^ -7 m) </span>

<span>Divide the speed of light by the wavelength. </span>
<span>(3.0 X 10^8m/s) / (4.5 X 10^ -7m) =6.67 X 10^ 14 per second or s- </span>

<span>Answer: 6.67 X 10^14 s- hope this helps</span>
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3 years ago
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This diagram shows the magnetic field lines near the ends of two magnets. There is an error in the diagram.
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I believe the answer is c
4 0
3 years ago
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Which example describes a nonrenewable resource?
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Answer: Examples of nonrenewable resources include crude oil, natural gas, coal, and uranium. These are all resources that are processed into products that can be used commercially. For example, the fossil fuel industry extracts crude oil from the ground and converts it to gasoline.

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2 years ago
Scientists are constantly exploring the universe, looking for new planets that support life similar to the life on
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The answer would be “B” because humans would need water, protection from radiation so we don’t melt or burn to death lol, and a gaseous atmosphere because we would need oxygen.
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A 4kg book sits on a table and your pet hamster puts his front paws on the book and pushes down with a force of 3N. What is the
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There are three forces acting on the book. 
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2. Force exerted downward by the hamster
3. Normal Force in reaction to the downward forces

Since the book is not moving, the net force is zero. The summation of all forces must be zero. Then we could find the normal force which is unknown (denoted as x).

∑F = -(4 kg)(9.81 m/s2) - 3 N + x =0
∑F = -39.24 N - 3N + x =0
x = 42 N

Therefore, the normal force is 42 N.
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3 years ago
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