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natali 33 [55]
2 years ago
8

Which examples are simple machines?

Physics
1 answer:
frozen [14]2 years ago
4 0
A hammer and a pulley
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Scientists studying bull sperm whales off the coast of South Africa have calculated that these mammals can descend to depths of
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3,00,000

Explanation:

because 1 m =100m so, 3000x100=300000

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What is the 5 quantitative research problems?<br>​
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There are four main types of Quantitative research: Descriptive, Correlational, Causal-Comparative/Quasi-Experimental, and Experimental Research. attempts to establish cause- effect relationships among the variables. These types of design are very similar to true experiments, but with some key differences.

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Quantitative research is defined as a systematic investigation of phenomena by gathering quantifiable data and performing statistical, mathematical, or computational techniques.

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3 years ago
The force of the added water produces a torque on the dam. In a simple model, if the torque due to the water were enough to caus
Fittoniya [83]

Answer:

The appropriate response is "\tau=\frac{1}{6} PgLh^3". A further explanation is described below.

Explanation:

The torque (\tau) produced by the force on the dam will be:

⇒  d \tau=XdF

On applying integration both sides, we get

⇒  \tau = \int_{0}^{a}x pgL(h-x)dx

⇒     = pgL\int_{0}^{h}(h-x)dx

⇒     =pgL[\frac{h^3}{2} -\frac{h^3}{3} ]

⇒     =\frac{1}{6} PgLh^3

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2 years ago
What does Newton's third law describe?
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Answer:

Newton's third law is: For every action, there is an equal and opposite reaction.

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