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Dmitrij [34]
2 years ago
12

Two cars are initially separated by 2500 m and traveling towards each other. One car travels at 4.5 m/s and the second car trave

ls at 8 m/s. How long does it take for the two cars to meet
Physics
1 answer:
mylen [45]2 years ago
7 0

Answer:

714.285s

Explanation:

use relative velocity

8-4.5 = 3.5m/s

x = 2500m

2500/3.5 = 714.285s = 700s (with sig figs)

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sleet_krkn [62]

Answer:

Resistivity \rho =\frac{RA}{l}

It depends upon cross sectional area and length of material

Explanation:

The resistance of any material is given by R=\frac{\rho l}{A}, here \rho is the resistivity of material , l is length of material and A is cross sectional area

So resistivity \rho =\frac{RA}{l}

So resistuivity of any material depends upon area of cross section and length of material

If cross sectional area will be more then resistivity will be more. And is length of the material will be more then resistivity will be less

3 0
3 years ago
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Art [367]

Answer:

3.5 kWh

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3 years ago
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GPE=mgh
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3 years ago
A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?
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Answer:

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6 0
2 years ago
If the mass of an egg is 0.57kg and it is dropped, calculated the force using newton's 2nd law
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F = ma

Acceleration in this case is acceleration due to gravity so

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8 0
2 years ago
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