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victus00 [196]
3 years ago
13

A Porsche challenges a Honda to a 500 m race

Physics
1 answer:
zlopas [31]3 years ago
8 0
A Porsche will always win no matter what
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What affects sounds at their source? MENTION DOPPLER EFFECT AND VIBRATIONS
wel

Answer:

Doppler effect, the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer, caused by relative motion of the observer and the wave source. This phenomenon is used in astronomical measurements, in Mössbauer effect studies, and in radar and modern navigation.

Explanation:

6 0
3 years ago
What is meant by the phrase "a consistent method of measurement"?
julia-pushkina [17]
A measurement that will always give the same answer.
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3 years ago
A stunt-rider on a motorcycle rides down a ramp and into a vertical loop-the-loop. If the diameter of the loop is 7.50 m, then t
VikaD [51]

Answer:

v = 6.06 m/s

Explanation:

In order for the rider to pass the top of the loop without falling, his weight must be equal to the centripetal force:

Centripetal Force = Weight \\\frac{mv^2}{r} = mg\\\\\frac{v^2}{r} = g\\\\v = \sqrt{gr}

where,

v = minimum speed of motorcycle at top of the loop = ?

g = acceleration due to gravity = 9.8 m/s²

r = radius of the loop = diameter/2 = 7.5 m/2 = 3.75 m

Therefore, using these values in equation, we get:

v = \sqrt{(9.8\ m/s^2)(3.75\ m)}

<u>v = 6.06 m/s</u>

5 0
3 years ago
The force that keeps a satellite in earth’s orbit is always directed away from the center of earth. true or false.
pshichka [43]
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8 0
3 years ago
Question 7
nikdorinn [45]

Answer:

D

Explanation:

im not sure just sounds right

7 0
3 years ago
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