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ch4aika [34]
3 years ago
7

A driver looks at her dashboard and reads that she is traveling at 100 kilometers per hour. What does this measurement represent

?
A) time
B) distance
C) average speed
D) instantaneous speed
Physics
2 answers:
Sergio039 [100]3 years ago
8 0
C. Average Speed 
because they are not giving you a specific time or distance so it must relate to speed. her average speed it 100 km/hr therefore the answer should be C
Dmitry_Shevchenko [17]3 years ago
6 0
The answer is C!! 100 kilometers per hour is an average speed.
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Help ASAP thanks !!!
Ann [662]

Answer:

true

Explanation:

3 0
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An entertainer pulls a table cloth off a table leaving behind the plates and sliverware undisturbed is an example of
umka2103 [35]

Answer:

D. Newton's first law

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if a pressure of 70.kPa on a volume of 80.cm cubed is reduced to 10.kPa, by what factor does the pressure change
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6 0
3 years ago
A gas, behaving ideally, has a pressure P1 and at a volume V1. The pressure of the gas is changed to P2. Using Avogadro’s, Charl
Bond [772]

Answer:

Boyle's Law

\therefore P_1.V_1=P_2.V_2

Explanation:

Given that:

<u><em>initially:</em></u>

pressure of gas, = P_1

volume of gas, = V_1

<em><u>finally:</u></em>

pressure of gas, = P_2

volume of gas, = V_2

<u>To solve for final volume</u> V_2

<em>According to Avogadro’s law the volume of an ideal gas is directly proportional to the no. of moles of the gas under a constant temperature and pressure.</em>

<em>According to the Charles' law, at constant pressure the volume of a given mass of an ideal gas is directly proportional to its temperature.</em>

But here we have a change in the pressure of the Gas so we cannot apply Avogadro’s law and Charles' law.

Here nothing is said about the temperature, so we consider the Boyle's Law which states that <em>at constant temperature the volume of a given mass of an ideal gas is inversely proportional to its pressure.</em>

Mathematically:

P_1\propto \frac{1}{V_1}

\Rightarrow P_1.V_1=k\ \rm(constant)

\therefore P_1.V_1=P_2.V_2

5 0
3 years ago
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