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3 years ago

A car travels 60 miles per hour. how much time does it takes the car to travel 30 miles?

Physics

2 answers:

elena55 [62]3 years ago

7 0

1 hour= 60 mins

60 mins= 60 miles

30 miles= (60 miles÷60 minutes)×30 miles

=30 mins

I am Lyosha [343]3 years ago

7 0

1 hr = 60 minutes 60 minutes / 60 miles = 1 minutes/miles 30 miles * 1 minute = 30 minutes 30 minutes

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Answer:

Explanation:

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3 years ago

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Explanation:

To calculate the wavelength of light, we use the equation:

$\lambda=\frac{c}{\nu}$

where,

$\lambda$ = wavelength of the light

c = speed of light = $331m/s$

As wavelength and frequency follows inverse relation, shortest wavelength is produced by highest frequency.

$\nu$ = highest frequency of light = $1.48kHz=1.48\times 10^3Hz=1.48\times 10^3s^{-1}$ $1Hz=1s^{-1}$

$\lambda=\frac{331m/s}{1.48\times 10^3s^{-1}}=0.224m$

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3 years ago

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4 years ago

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Answer:

Explanation:

The mass of the rock can be found by using the formula

$m = \frac{p}{v} \\$

p is the momentum

v is the velocity

From the question we have

$m = \frac{5000}{20} = \frac{500}{2} = 250 \\$

We have the final answer as

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3 years ago