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MakcuM [25]
3 years ago
14

Tara heated a beaker on a hot plate. Then, she set the solution on the countertop to cool. Her lab partner, Molly, did not reali

ze that the beaker was hot and touched it with her bare fingers. What should Molly do to treat her burn? options: A put her fingers in her mouth B hold her fingers under cold running water C rub butter, oil or lotion on her fingers D wave her fingers through the air
Physics
1 answer:
Lorico [155]3 years ago
3 0
I would go with choice C) rub some treatment on it because A) is just plain useless since putting your fingers in your mouth is getting u germs so no, not B) because yes even though cold is the opposite of hot, u don't know what type of burn she may have so u can actually hurt yourself more with the water or even be infected, and definitely not D) because that wont really solve it, its best to see a doctor or professional who can help you.
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The adult house fly lives for only about 1 month, or 8 x 10^-2 y. The oldest recorded age of a tortoise was 1.8800 x 10^2 y. Wha
melisa1 [442]

187.92 years

8*10^-2= .08

1.88*10^2= 188

188-.08=187.92

8 0
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(3mrks) physics solar panel question
shtirl [24]
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6 0
3 years ago
Determine the amount of time for polonium-210 to decay to one fourth its original quantity. The half-life of polonium-210 is 138
Tju [1.3M]

Answer:

276 days

Explanation:

1/4 th of the original means <u><em>2 half lives</em></u>

1 half life = 138 days

So,

2 half lives = 276 days

5 0
3 years ago
this stationary wave is what we call the first harmonic of the first normal mode of the system. in units of l, the length of the
pentagon [3]

First harmonic of a closed pipe is determined as velocity, v, to four times length (4L), F₀ v/4L.

<h3>First harmonic of a closed pipe</h3>

The first harmonic of a closed pipe is the fundamental frequency of the closed of the closed pipe.

L = λ/4

where;

  • L is the length of the pipe
  • λ is the wavelength of sound

λ = 4L

But, v = F₀λ

v = F₀(4L)

F₀ = v/4L

where;

  • F₀ is the first harmonic
  • v is speed of sound

Thus, first harmonic of a closed pipe is determined as velocity, v, to four times length (4L), F₀ v/4L.

Learn more about fundamental frequency here:  brainly.com/question/1967686

#SPJ11

<h3 />
6 0
2 years ago
A spring whose spring constant is 260 lbf/in has an initial force of 100 lbf acting on it. Determine the work, in Btu, required
Readme [11.4K]

Answer:

A spring whose spring constant is 200 lbf/in has an initial force of 100 lbf acting on it. Determine the work, in Btu, required to compress it another 1 inch.

Step 1 of 4

The force at any point during the deflection of the spring is given by,

where is the initial force

and x is the deflection as measured from the point where the initial force occurred.

The work required to compress the spring is

Therefore work required to compress the spring is

The work required to compress the spring in Btu is calculated by

Where 1Btu =778

The work required to compress the spring,  

eman Asked on February 19, 2018 in thermal fluid Sciences 4th solutions.

Explanation:

7 0
3 years ago
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