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2 years ago

If I start driving 80 miles per hour down the interstate how far will I go if I Drive for 4.5 hours

1 answer:

4 0

If you are driving 80 miles per hour, you are driving 80 miles for every hour. So if you drive for 4.5 hours, multiply. 80 x 4.5= 360miles

helpful formula:<span>S = V x T

Speed= Velocit</span>y(80mph) x Time(4.5hrs)

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If you increase the force acting on an object, what will happen to the object's motion

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3 years ago

In its powdered form,the mineral hematite is reddiah which mineral property is best described

Serggg [28]

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3 years ago

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3 years ago

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Light of wavelength 500nm shines on a pair of slits. This produces an interference pattern on a screen 2.00m behind the slits. M

grandymaker [24]

Answer:

The value is $d = 0.000125 \ m$

Explanation:

From the question we are told that

The wavelength is $\lambda = 500 \ nm = 500 *10^{-9 } \ m$

The distance is of the screen is $D = 2.0 \ m$

The width of the fifth dark spot is $y = 4.00 \ cm = 0.04 \ m$

Generally the width of a fringe is mathematically represented as

$y = \frac{ n * \lambda * D }{d }$

=> $0.04 = \frac{ 5 * 500 *10^{-9} * 2 }{d}$

=> $d = \frac{ 5 * 500 *10^{-9} * 2 }{0.04}$

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7 0

3 years ago

An 85-kg hiker climbs to the summit of Mount Mitchell in western North Carolina. During one 2.0-h period, the climber's vertical

Bas_tet [7]

Answer:

The change in gravitational potential energy of the climber-Earth system, $\Delta E=4.49\times 10^5\ J$

Explanation:

Given that,

Mass of the hiker, m = 85 kg

Time, t = 2 h

Vertical elevation of the climber, h = 540 m

We need to find the change in gravitational potential energy of the climber-Earth system. We know that due to change in position of an object, gravitational potential energy occurs. It is given by :

$\Delta E=mgh\\\\\Delta E=85\times 9.8\times 540\\\\\Delta E=4.49\times 10^5\ J$

So, the change in gravitational potential energy of the climber-Earth system is $4.49\times 10^5\ J$ . Hence, this is the required solution.

5 0

3 years ago