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julia-pushkina [17]
2 years ago
10

I drove from Oklahoma to California (1452.9 miles) in 23 hours? What was my average speed?

Physics
1 answer:
storchak [24]2 years ago
5 0

Answer:

63 miles per hour

Explanation:

you just divide miles and hours to get your average speed

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Using V= vo +at with Vo = 0 and a= 4m/sec2.
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2 years ago
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A capacitor with a capacitance of 50µf when connected to a battery of 400 V. The charge and energy stored on it is? a. 0.05 C an
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Answer:

c. 0.02 C and 4 J

Explanation:

Applying,

Q = CV................ Equation 1

Where Q = Charge, C = Capacitance of the capacitor, V = Voltage.

From the question,

Given: C = 50 μF = 50×10⁻⁶ F, V = 400 V

Substitute these values into equation 1

Q = (50×10⁻⁶)(400)

Q = 0.02 C.

Also Applying

E = CV²/2............. Equation 2

Where E = Energy stored.

Therefore,

E = (50×10⁻⁶ )(400²)/2

E = 4 J

Hence the right option is c. 0.02 C and 4 J

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2 years ago
In which medium does sound travel the fastest?
TEA [102]

Sound travels through solids the fastest

Hope it helps...

7 0
3 years ago
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Rachel collected data on the speed of sound waves passing through different media.
Helga [31]

The conclusion is, medium Q is most likely a solid because solids have the highest density and sound waves travel fastest in high density media.

<h3>Effect of density on speed of sound</h3>

Sound wave is mechanical wave that requires material medium for its propagation.

A high dense medium, is a medium with closely packed molecules. Since sound wave requires material medium for its propagation, it will travel faster in a high dense medium than a less dense medium.

Thus, the speed of sound increases as the density of the medium increases.

<h3>Speed of sound in the different media</h3>

The conclusion that can be made from the speed of sound in the different media is "Medium Q is most likely a solid because solids have the highest density and sound waves travel fastest in high density media".

Learn more about effect of density on speed of sound here: brainly.com/question/3323620

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........................ is The force affecting on an object during certain period of time *
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Answer:

I think c is the answer but I have a little concern on d too

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