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3 years ago

Which is the best example of translational motion?

Physics

2 answers:

expeople1 [14]3 years ago

7 0

I would saw B. I choose B because translational motion is an object that shifts between one place to another.

Deffense [45]3 years ago

4 0

Answer:

B. A soccer ball passed between two players

Explanation:

Translational motion occurs when a body moves from one point to another without rotating.

A ball passed between two players is illustrated as a translational motion because the ball moved from one point to bother without rotating around a mean point

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Suppose y = 2x + 10. Find y if x = -2

san4es73 [151]

Answer:

y = 6

Explanation:

Given parameters:

Given equation:

y = 2x + 10

And supposing; x = -2

Unknown:

y = ?

Solution:

We are going to solve this problem by substitution;

y = 2x + 10

since x = -2; input this into the equation to solve for y;

y = 2(-2) + 10 = -4 + 10 = 6

The value of y = 6

4 0

3 years ago

There are 2.5 cm in a inch if a necklace is 16 inches long how long is it measured in centimeters

wariber [46]

The answer is 840 cm

8 0

3 years ago

Read 2 more answers

A pitcher tosses a baseball in the positive direction with a speed of 12 m/s. If the ball stops after 4 seconds, what is the ave

meriva

Answer:

option c is correct

Explanation:

we know that time rate of change of velocity is called acceleration

so a=v/t

a=12/4

a=3m/s²

8 0

4 years ago

. A long 10-cm-diameter steam pipe whose external surface temperature is 110oC passes through some open area that is not protect

Nata [24]

Answer:

$Nu = 30.311$

Explanation:

Let consider that pipe is a horizontal cylinder. The Nusselt number is equal to:

$Nu = \left\{0.6+\frac{0.387\cdot Ra_{D}^{\frac{1}{6} }}{[1+\left(\frac{0.559}{Pr} \right)^{\frac{9}{16}} ]^{\frac{8}{27} }} \right\}^{2}$ , for $Ra_{D} \le 10^{12}$ .

Where $Ra_{D}$ is the Rayleigh number associated with the cylinder.

The Rayleigh number is:

$Ra_{D} = \frac{g\cdot \beta\cdot (T_{pipe}-T_{air})\cdot D^{3}}{\nu^{2}}\cdot Pr$

By assuming that air behaves ideally, the coefficient of volume expansion is:

$\beta = \frac{1}{T}$

$\beta = \frac{1}{283.15\,K}$

$\beta = 3.532\times 10^{-3}\,\frac{1}{K}$

The cinematic and dynamic viscosities, thermal conductivity and isobaric specific heat of air at 10 °C and 1 atm are:

$\nu = 1.426\times 10^{-5}\,\frac{m^{2}}{s}$

$\mu = 1.778\times 10^{-5}\,\frac{kg}{m\cdot s}$

$k = 0.02439\,\frac{W}{m\cdot ^{\textdegree}C}$

$c_{p} = 1006\,\frac{J}{kg\cdot ^{\textdegree}C}$

The Prandtl number is:

$Pr = \frac{\mu\cdot c_{p}}{k}$

$Pr = \frac{(1.778\times 10^{-5}\,\frac{kg}{m\cdot s} )\cdot (1006\,\frac{J}{kg\cdot ^{\textdegree}C} )}{0.02439\,\frac{W}{m\cdot ^{\textdegree}C} }$

$Pr = 0.733$

Likewise, the Rayleigh number is:

$Ra_{D} = \frac{(9.807\,\frac{m}{s^{2}} )\cdot (3.532\times 10^{-3}\,\frac{1}{K} )\cdot (110^{\textdegree}C-10^{\textdegree}C)\cdot (0.1\,m)^{3}}{(1.426\times 10^{-5}\,\frac{m^{2}}{s})^{2} }\cdot (0.733)$

$Ra_{D} = 12.486\times 10^{6}$

Finally, the Nusselt number is:

$Nu = \left\{0.6+\frac{0.387\cdot (12.486\times 10^{6})^{\frac{1}{6} }}{\left[1 + \left(\frac{0.559}{0.733}\right)^{\frac{9}{16} }\right]^{\frac{8}{27} }} \right\}^{2}$

$Nu = 30.311$

8 0

3 years ago

Read 2 more answers

5. Define biodiversity, and list four ways that humans have a negative

jolli1 [7]

Biodiversity is the variety of life in the world or in a particular habitat or ecosystem. destruction, degradation and fragmentation of habitats. reduction of individual survival and reproductive rates through exploitation, pollution and introduction of alien species. Those are the negative impacts

6 0

4 years ago