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3 years ago

If the student releases the rocks, which rock will land on Earth's surface

Engineering

1 answer:

deff fn [24]3 years ago

8 0

Answer:

2kg

Explanation:

Because the 2kg carries more weight, gravity will affect it more, meaning it will land on Earth's surface faster than the 1kg rock.

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To solve the problem, make assumptions for missing data and justify. Given:

finlep [7]

Answer:

5,4,1, this is a explication

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2 years ago

Hằng số phổ biến chất khí

drek231 [11]

Answer:

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Explanation:

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2 years ago

Calculate the convective heat-transfer coefficient for water flowing in a round pipe with an inner diameter of 3.0 cm. The water

olasank [31]

Answer:

h = 10,349.06 W/m^2 K

Explanation:

Given data:

Inner diameter = 3.0 cm

flow rate = 2 L/s

water temperature 30 degree celcius

$Q = A\times V$

$2\times 10^{-3} m^3 = \frac{\pi}{4} \times (3\times 10^{-2})^2 \times velocity$

$V = \frac{20\times 4}{9\times \pi} = 2.83 m/s$

$Re = \frac{\rho\times V\times D}{\mu}$

at 30 degree celcius $= \mu = 0.798\times 10^{-3}Pa-s , K = 0.6154$

$Re = \frac{10^3\times 2.83\times 3\times 10^{-2}}{0.798\times 10^{-3}}$

Re = 106390

So ,this is turbulent flow

$Nu = \frac{hL}{k} = 0.0029\times Re^{0.8}\times Pr^{0.3}$

$Pr= \frac{\mu Cp}{K} = \frac{0.798\times 10^{-3} \times 4180}{0.615} = 5.419$

$\frac{h\times 0.03}{0.615} = 0.0029\times (1.061\times 10^5)^{0.8}\times 5.419^{0.3}$

SOLVING FOR H

WE GET

h = 10,349.06 W/m^2 K

6 0

3 years ago

What tool should be used to loosen or tighten brake or fuel lines?

emmainna [20.7K]

The tool you would use are brake line wrenches.

4 0

3 years ago

Reverse engineering is not the process of analyzing an existing product to 5 points

Lunna [17]

true

Explanation:

I order for the engineering process to be reversed it had to developed an product and had to be proved what were used to form the product

5 0

2 years ago

Read 2 more answers