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Irina18 [472]
2 years ago
15

Why does it take more time for a larger sample of water to freeze?

Physics
2 answers:
Stels [109]2 years ago
3 0

Answer:The greater the amount of water that there is it will take longer for the water to freeze because more heat has to be dissipated into the environment

Explanation:

exis [7]2 years ago
3 0

Answer:

The greater the mass of water, the more heat has to be dissipated into the environment and the longer it will take to freeze. The greater the surface area of the water, the faster the water will lose its heat and freeze.

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A spring with spring constant of 33 N/m is stretched 0.15 m from its equilibrium position. How much work must be done to stretch
Hoochie [10]

Work done is 0.442J

<u>Explanation:</u>

Given:

Spring constant, k = 33 N/m

Distance, x₁ = 0.15m

Additional distance, x₂ = 0.072 m

Total distance = 0.15 + 0.072 m

                        = 0.222 m

Work done, W = ?

We can calculate work done by the formula

W = \frac{1}{2}kx_2^2 - \frac{1}{2}kx_1^2

On substituting the value we get:

W = \frac{1}{2}k [(x_2)^2  - (x_1)^2]\\ \\W = \frac{1}{2} X 33[(0.222)^2 - (0.15)^2]\\ \\W = \frac{1}{2}X 33 [ 0.0493 - 0.0225]\\ \\W = 0.442 J

Therefore, work done is 0.442J

7 0
3 years ago
What are scientific theories?
Goryan [66]

A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment.

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3 years ago
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Electronic Health Record (EHR)

Explanation:

An Electronic Health Record is basically a digital equivalent of a patient's medical record. They are extremely useful because they provide a concise and accurate history of all of the patient's former treatments, exams and ilnesses, which help in optimization of the treatment process by eliminating extra steps like retaking exams and reducing the odds of medical errors.

6 0
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Exothermic because it releases heat.
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In a collision, the human body will strike the seatbelt, steering wheel, dash or windshield at? Group of answer choices only 10
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Explanation:

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2 years ago
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