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3 years ago

If a car is rounding a flat curve on a highway, what is the centripetal force on the car?

Physics

1 answer:

tigry1 [53]3 years ago

8 0

Answer:

The net force on a car traveling around a curve is the centripetal force, Fc = m v2 / r, directed toward the center of the curve.

For a level curve, the centripetal force will be supplied by the friction force between the tires and roadway.

A banked curve can supply the centripetal force by the normal force and the weight without relying on friction.

Explanation:

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True or False: The only type of satellites in Earth's orbit are natural satellites.

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False, there are also artificial satellites.

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3 years ago

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Which of the following describes glass?

kenny6666 [7]

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4 years ago

At some instant and location the electric field associated with an electromagnetic wave in vacuum has the strength 96.5 V/m. Fin

prisoha [69]

Answer:

B = 32.17 x 10^-8 Tesla

u = 8.24 x 10^-8 J/m^3

P/A = 24.72 W/m^2

Explanation:

E = 96.5 V/m

velocity of light, c = 3 x 10^8 m/s

Let B be the magnetic field.

The relation between the electric field strength and the magnetic field strength is given by

B = E / c = 96.5 / (3 x 10^8) = 32.17 x 10^-8 Tesla

Let u be the energy density.

$u = \frac{1}{2}\times \varepsilon _{0}E^{2}+\frac{1}{2\mu _{0}}B^{2}$

$u = \frac{1}{2}\times 8.854\times 10^{-12}\times 96.5\times 96.5+\frac{1}{2\times 4\times 3.14\times 10^{-7}}\times 32.17^{2}\times 10^{-16}$

u = 8.24 x 10^-8 J/m^3

Let Power flow per unit area is

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7 0

3 years ago

Taste and smell are called chemical senses because:

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Answer:

The answer is a," their receptors are sensitive to chemical molecules."

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4 years ago

Pepe and alfredo are resting on an offshore raft after a swim. they estimate that 3.00 m separates a trough and an adjacent cres

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The velocity (V) of a wave is the frequency (F) times the wave length (lambda):

V = F * lamda

lambda is the distance from crest to crest which is twice the distance from crest to trough.

=> lamba = 2 * 3.00 m = 6.00 m

F = number of waves / time = 13.0 waves / 20.2 s

Now you can plug in the values in the formula of V:

V = 6.00 m/wave* 13.0 waves / 20.2 s = 3.86 m/s

Answer: 3.86 m/s

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3 years ago