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Delicious77 [7]
2 years ago
14

Imamu’s car is travelling twice as fast as Mosi’s car. Mosi travels 200 km in 2 hours. How long does it take Imamu to travel 50

km?
Physics
1 answer:
soldi70 [24.7K]2 years ago
8 0

Answer:

0.25hr

Explanation:

Given parameters:

Distance  = 200km

Time = 2hrs

  Now, let us find the rate which is the speed;

    Speed  = \frac{distance}{time}  

 Insert parameters:

      Speed  = \frac{200}{2}   = 100km/hr

Since the speed of Imamu = 2 x speed of Mosi = 200km/hr

Time taken  = \frac{distance}{speed}  = \frac{50}{200}   = 0.25hr

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The correct answer to the question is : D) Impulse

EXPLANATION:

Before going to answer this question, first we have to understand impulse.

Impulse of a body is defined as change in momentum or the product of force with time.

Mathematically impulse = F × t = m ( v - u ).

Here, v is the final velocity

          u is the initial velocity

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Hence, the perfect answer of this question is impulse m i.e the force multiplied with time is known as impulse.


7 0
3 years ago
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Oksana_A [137]

Answer:9.75 m/s

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From diagram

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at x=3

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Now differentiating equation 1 w.r.t time

2x\frac{\mathrm{d} x}{\mathrm{d} t}+2y\frac{\mathrm{d} y}{\mathrm{d} t}=0

x\frac{\mathrm{d} x}{\mathrm{d} t}=-y\frac{\mathrm{d} y}{\mathrm{d} t}

3\times 13=-4\times \frac{\mathrm{d} y}{\mathrm{d} t}

\frac{\mathrm{d} y}{\mathrm{d} t}=-\frac{3\times 13}{4}=-9.75 m/s

negative indicates distance is decreasing with time

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vivado [14]

Answer:

A) microwaves and ultraviolet

Explanation:

this is the spectrum in order:

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law of conservation of energy

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