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4 years ago

The reaction has at least two reactants and one product

Physics

1 answer:

astra-53 [7]4 years ago

4 0

Answer:

I think synthesis reaction, because the reaction has two or more simple substances to form a combination with a complex substance.

Explanation:

If you need more information, please ask.

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A fire hose has an inside diameter of 6.40 cm. Suppose such a hose carries a flow of 40.0 L/s starting at a gauge pressure of 1.

inessss [21]

Answer:

The Reynolds numbers for flow in the fire hose.

Explanation:

Given that,

Diameter = 6.40 cm

Rate of flow = 40.0 L/s

Pressure $P=1.62\times10^{6}\ N/m^2$

We need to calculate the Reynolds numbers for flow in the fire hose

Using formula of rate of flow

$Q=Av$

$v=\dfrac{Q}{A}$

Where, Q = rate of flow

A = area of cross section

Put the value into the formula

$v=\dfrac{40.0\times10^{-3}}{3.14\times(3.2\times10^{-2})^2}$

$v=12.44\ m/s$

We need to calculate the Reynolds number

Using formula of the Reynolds number

$n_{R}=\dfrac{2\rho\times v\times r}{\eta}$

Where, $\eta$ =viscosity of fluid

$\rho$ =density of fluid

Put the value into the formula

$n_{R}=\dfrac{2\times100\times12.44\times3.2\times10^{-2}}{1.002\times10^{-3}}$

$n_{R}=7.945\times10^{5}$

Hence, The Reynolds numbers for flow in the fire hose.

3 0

3 years ago

A machine part has the shape of a solid uniform sphere of mass 205 g and diameter 4.10 cm. It is spinning about a frictionless a

kondor19780726 [428]

Answer:

Answer is in the following attachment.

Explanation:

3 0

3 years ago

6.A Soldering Iron has a power of 25W. It uses the 230V mains supply. What is the current when it is switched on?

solmaris [256]

Power (P) in "watts" in a circuit is the product in multiplying the current (I) in "amperes" and voltage (V) in "volts".

P = I x V ; I = P / V

Substituting the given values,
I = (25 W) / (230 V) = 0.1087 amperes

Therefore, the current is approximately 0.1087 A.

4 0

4 years ago

Define force and provide an example

ollegr [7]

Answer:

force-strength,power or energy as an attribute of motion, movement or action. Example: Frictional force.

4 0

4 years ago

What is the relationship between the frequency of light and its color?

shtirl [24]

Answer:

we understand it by electromagnetic spectrum. and we velength is the distance between identical location on adjecent waves ( see figure below)

3 0

3 years ago