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Diano4ka-milaya [45]
2 years ago
8

A car weighing 8000N is traveling at 45 m/s on a perfectly flat, frictionless road. If the driver slams on the brakes, how far w

ill thw car slide before it comes to a stop?
Physics
1 answer:
laila [671]2 years ago
3 0

Without friction, the car cannot stop...

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As your hand moves back and forth to generate longitudinal pulses in a spiral spring, your hand completes 2.91 back-and-forth cy
Lapatulllka [165]

Answer:

Wavelength, \lambda=0.011\ m

Explanation:

Given that,

Number of cycles in a spiral spring is 2.91 in every 3.67 s

The velocity of the pulse in the spring is 0.925 cm/s, v = 0.00925 m/s

To find,

Wavelength

Solution,

Number of cycles per unit time is called frequency of a wave. The frequency of the longitudinal pulse is,

f=\dfrac{2.91}{3.67}=0.79\ Hz

The wavelength of a wave is given by :

\lambda=\dfrac{v}{f}

\lambda=\dfrac{0.00925\ m/s}{0.79\ Hz}

\lambda=0.011\ m

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Answer:

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In other other words A

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An airplane wing is designed so that the speed of the air across the top of the wing is 255 m/s when the speed of the air below
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Explanation:

This problem is solved using Bernoulli's equation.

Let P be the pressure at a point.

Let p be the density fluid at a point.

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Lets apply the equation of a point just above the wing and to point just below the wing.

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Force is given by the product of pressure difference and area.

Given that area is 27ms^{2}.

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What causes interstellar dust and clouds to condense in the planets and stars
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