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Umnica [9.8K]
4 years ago
7

Suppose your car is equipped with tire pressure monitoring system (TPMS) and the tire pressure is 34.0 psi on a 98F day in calif

ornia. You decided to take a road trp to Alaska where the temperature drops to 20 F. As you arrived to Alaska, you noticed that the tire pressure monitoring system alert light is illumintated. why did this happen?
Physics
1 answer:
natali 33 [55]4 years ago
5 0

Answer:Pressure decreases

Explanation:

Given Temperature decreases form 98 F to 20 F

Kinetic Energy of gas molecules depends on temperature so as the temperature decreases the kinetic energy also decreases and vice-versa.

As gas molecules lose kinetic energy they occupy less volume thereby decreasing the Pressure of tire.  

So the tire pressure monitoring system is illuminated because of the reduction in pressure beyond a defined limit.

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11. In order for an object moving at 10 m/s to have a kinetic energy of 1800
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Answer:

20 to 30

Explanation:

20 to 30 is the correct answer

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As a freely falling object picks up downward speed, what happens to the power supplied by the gravitational force?.
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As a freely falling object picks up downward speed. What happens to the power supplied by the gravitational force? Does it increase, decrease or stay the same? The power will increase because (Power=work/time; work=f(d); and F x d/t; FV).

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Which is an expression?
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C. 4+ 3 < 9

Explanation:

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3 years ago
A 2.40 kg stone is sliding in the +x-direction on a horizontal, frictionless surface. It collides with a 4.00 kg stone at rest.
tester [92]

Answer:

4.32 kg.m/s

Explanation:

SInce the 2.4 kg stone is mobing at speed of 3.6m/s at an angle of 30 degree measured from the x+ direction toward y+ direction. Its y-component momentum is product of its velocity in the y-direction and its mass

P_y = m*v_y = m*v*sin(\theta)

P_y = 2.4*3.6*sin(30)

P_y = 2.4*3.6*0.5 = 4.32 kg.m/s

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3 years ago
The range of human hearing extends from approximately 20 Hz to 20 000 Hz. Find the wavelengths of these extremes when the speed
soldi70 [24.7K]

Explanation:

Given that,

The range of human hearing extends from approximately 20 Hz to 20 000 Hz. We need to find the wavelengths of these extremes when the speed of sound in air is equal to 338 m/s.

Speed of any wave is given by :

v=f\lambda

\lambda is wavelength of wave

If f = 20 Hz

\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{338}{20}\\\\\lambda=16.9\ m

If f = 20000 Hz

\lambda'=\dfrac{v}{f'}\\\\\lambda'=\dfrac{338}{20000}\\\\\lambda'=0.0169\ m

The smallest wavelength that can be heard is 0.0169 m and the longest wavelength that can be heard is 16.9 m.

7 0
3 years ago
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