3 years ago

The velocity of an object includes its speed and

Physics

1 answer:

a_sh-v [17]3 years ago

3 0

Velocity is a vector meaning it includes an objects speed and direction.

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A 9 V battery produces a current of 18 amps. What is the resistance?

artcher [175]

<h2> $\bf{ \underline{Given:- }}$ </h2>

$\sf• \: Battery \: Voltage \: (V) = 9 \: v$

$\sf• \: Current \: (I) = 18 \: Amps.$

$\\$

<h2> $\bf{ \underline{To \: Find :- }}$ </h2>

$\sf• \: The \: Resistance.$

$\\$

$\huge\bf{ \underline{Solution :- }}$

$\bf \red{ \bigstar{ \: Formula \: of \: Resistance \: (R) = \frac{V}{I}}}$

$\rightarrow \sf R = \frac{9}{18}$

$\rightarrow \sf R = \frac{1}{2}$

$\rightarrow \sf R = 0.5$

$\\$

<h3> $\bf \purple{Therefore, \: the \: \: resistance \: \: is \: \: 0.5 \: Ω \: .}$ </h3>

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3 years ago

Clear cutting has a similar effect as controlled burning of a forest. <br><br> True<br><br> False

mariarad [96]

<span>Clear cutting has a similar effect as controlled burning of a forest is True.

True </span>

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3 years ago

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t or f if an object has a canstant acceleration it must ve changing velocity at the same rate over over again

Angelina_Jolie [31]

The answer to your question is True

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3 years ago

a mass of 1.00 kg of water at temperature T is poured from a height of 0.100 km into a vessel containing water of the same tempe

Mariana [72]

Answer:

1.34352 kg

Explanation:

$m_w$ = Mass of water falling = 1 kg

h = Height of fall = 0.1 km

$\Delta T$ = Change in temperature = 0.1

c = Specific heat of water = 4186 J/kg K

g = Acceleration due to gravity = 9.81 m/s²

$m_v$ = Mass of water in the vessel

Here the potential energy will balance the internal energy

$m_wgh=m_wc\Delta T+m_vc\Delta T\\\Rightarrow m_v=\dfrac{m_wgh-m_wc\Delta T}{c\Delta T}\\\Rightarrow m_v=\dfrac{m_wgh}{c\Delta T}-m_w\\\Rightarrow m_v=\dfrac{1\times 9.81\times 100}{4186\times 0.1}-1\\\Rightarrow m_v=1.34352\ kg$

Mass of the water in the vessel is 1.34352 kg

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3 years ago

In objects motion will not change is the force is acting on the object are blank

maks197457 [2]

An object in motion stays in motion while an object at rest stays at rest.

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3 years ago