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Katena32 [7]
3 years ago
6

A car advertisement claims their car can go from a stopped position to 60 miles per hour in 5 seconds. The advertisement is desc

ribing the
car’s
Physics
1 answer:
Komok [63]3 years ago
5 0

Answer:

Acceleration

Explanation:

The advertisement is describing the acceleration of the car.

Acceleration is the rate of change of velocity per unit of time. It can be expressed mathematically as;

 Acceleration  = \frac{v  - u}{t}  

 v is the final velocity

 u is the initial velocity

 t is the time taken

 Any quantity that specifies the rate of change of velocity of a body within a given time frame is describing its acceleration.

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Answer:B

Explanation:

Given

speed of car v=10 m/s

mass of clump m=0.5 kg

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Since the tire is rotating about axle so a centripetal force is acting constantly on each particle towards the center of tire.

Centripetal force is given by

F_c=\frac{mv^2}{r}

where m=mass\ of\ element

v=speed

r=distance\ from\ center

F_c=\frac{0.5\times 10^2}{0.2}

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Answer:

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Explanation:

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3 years ago
What happens when the crests of two waves overlap
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Energy of the waves are redistributed to form a resultant wave with amplitude given by the summation of individual wave's amplitude. 
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3 years ago
How many signifficant figures do the following number have 258​
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Answer:

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<u>Sig Figs</u>

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<u>Decimals</u>

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<u>E-Notation</u>

2.58e+2

<u>Words</u>

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Explanation:

258 Rounded to Fewer Sig Figs

2 260                2.6 × 102

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