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Phantasy [73]
4 years ago
9

Formula one racers speed up much more quickly than normal passenger vehicles, and they also can stop in a much shorter distance.

a formula one racer traveling at 90 m/s can stop in a distance of 110 m. What is the magnitude of the car's acceleration as it slows during braking?
Physics
1 answer:
soldi70 [24.7K]4 years ago
8 0

Answer:

a = -36.8 m/s/s

Explanation:

Initial speed of the car

v_i = 90 m/s

finally car will stop after it cover the distance

d = 110 m

so we have

v_f^2 - v_i^2 = 2 a d

here we have

0 - 90^2 = 2(a) (110)

a = \frac{90^2}{220}

a = -36.8 m/s^2

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3 years ago
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What weather condition creates a tornado?
AnnZ [28]

Answer:

Tornadoes form in unusually violent thunderstorms when there is sufficient (1) instability and (2) wind shear present in the lower atmosphere. Instability refers to unusually warm and humid conditions in the lower atmosphere, and possibly cooler than usual conditions in the upper atmosphere.

Explanation:

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5 0
3 years ago
In a circuit with one 12.0 resistor, a current of 0.500 A is flowing. This circuit is powered by a single
Juliette [100K]

Answer:

6 V

Explanation:

In a circuit, the relationship between voltage, current and resistance is given by Ohm's law:

V=RI

where

V is the voltage

R is the resistance

I is the current

In this circuit, we have

R=12.0\Omega is the resistance

I = 0.500 A

so we can find the voltage of the battery by using Ohm's law:

V=(12.0 \Omega)(0.500 A)=6 V

4 0
3 years ago
Light of wavelength 645 nm is incident on a double slit. The angle between the central bright fringe and the second dark fringe
kumpel [21]

Answer:

Slit separation, d=1.13\times 10^{-5}\ m

Explanation:

It is given that,

Wavelength of light, \lambda=645\ nm=645\times 10^{-9}\ m

The angle between the central bright fringe and the second dark fringe, \theta=4.9^{\circ}

In case of double slits, the condition for dark fringe is given by :

d\ sin\theta=(n-\dfrac{1}{2})\lambda

n = 2

d\ sin\theta=\dfrac{3}{2}\lambda

d=\dfrac{3\lambda}{2\ sin\theta}

d=\dfrac{3\times 645\times 10^{-9}}{2\ sin(4.9)}

d=1.13\times 10^{-5}\ m

So, the slit separation is 1.13\times 10^{-5}\ m. Hence, this is the required solution.

8 0
3 years ago
Which of the following might be measured in
gulaghasi [49]

Answer:

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Explanation:

Square meters, or m^2, are the units that represent area, or the product of two lengths.  This is because the length and the width both have the units meters, so when multiplied to calculate area, the resulting units are square meters or m2.  Thus, the answer for this question is D.

The length of a pendulum string would be measured in meters.

The volume of an atom would be measured in m^3 (volume is the product of the length, width, and height, giving it a cubic power).  However, the volume would probably be measured in a much smaller unit because atoms are very small.

The mass of a book would likely be measured in grams or kilograms.

4 0
4 years ago
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