4 years ago

In Paragraph 3 of this passage, what clues help you know the meaning of the word

Physics

1 answer:

n200080 [17]4 years ago

4 0

The answer is d because you have to make sure that everything is right

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Analyze the problem of known:<br><br> Unknown:

garik1379 [7]

Yeah I have jnmow idea come let’s go or do she hey hey I

5 0

3 years ago

A helicopter is ascending vertically with a speed of 5.10m/s. At a height of 105 m above the Earth, a package is dropped from a

Oksi-84 [34.3K]

Answer:

The time taken for the package to reach the ground is 20.6s

Explanation:

Given that the formula of distance is D = S×T where S represents soeed and T is time. So you have to substitute the following values into the formula :

$distance = speed \times time$

$let \: distance = 105 \\ let \: speed = 5.10$

$105 = 5.1 \times t$

$5.1t = 105$

$t = 105 \div 5.1$

$t = 20.6 \: second \: (3s.f)$

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3 years ago

Three Carnot engines operate between the following temperature limits.

Kipish [7]

Answer:c>a>b

Explanation:

Given

All the engine extracts same amount of heat(Q) from High-temperature reservoir

For a) 400 and 500 K

$\eta _{engine}=1-\frac{T_L}{T_H}$

$\eta _{engine}=\frac{work\ supplied}{heat\ supplied}$

$1-\frac{400}{500}=\frac{W_a}{Q}$

$W_a=\frac{Q}{5}$

For b)500 K and 600K

$1-\frac{500}{600}=\frac{W_b}{Q}$

$W-b=\frac{Q}{6}$

For c) 400 K and 600 K

$1-\frac{400}{600}=\frac{W_c}{Q}$

$W_c=\frac{2Q}{3}$

So c will give the highest amount of work

c>a>b

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3 years ago

How does charge seperation occur within a cloud?

mars1129 [50]

It occur when is lightning.

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3 years ago

The velocity of waves having wavelength 0.643 m and frequency 3.25 e 10 hz is

Alexeev081 [22]

The relationship between velocity (v), wavelength (w) and frequency (f) is expressed as:

v = w f

Plugging in the given values into the equation:

v = 0.643 m (3.25 e 10 Hz)

Where Hz = 1 / s , therefore:

v = 0.643 m (3.25 e 10 / s)

v = 2.09 <span>e 10 m / s</span>

4 0

4 years ago