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2 years ago

7

What is the average speed of a car that travels 600 km in 10 hours?

1 answer:

Lady bird [3.3K]2 years ago

6 0

Average speed = (distance covered) / (time to cover the distance)

= (600 km / 10 hr) = 60 km/hr

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A trombone has a variable length. When a musician blows into the mouthpiece and causes air in the tube of the horn to vibrate, t

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Answer:

The frequency increases.

Explanation:

When the Musician draws the slide in the length of the horn gets shorter, which causes a decrease in the wavelength. A decrease in the wave length results in an increase in frequency.

Note:

The diameter of the horn has an effect on frequency, so a wider horn is effectively a long horn - open end correction ( distance between the the antinode and the open end of a pipe).

Frequency also depends on how hard the musician blows the trombone. The musician can change the frequency with the lip pressure being applied.

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Which qualifications are typical for a Manufacturing career? Check all that apply.

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3 years ago

Birds fly south for the winter.bats hibernate during winter.what are these examples of

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3 years ago

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If a person weighs 818 N on earth and 5320 N on the surface of a nearby planet, what is the acceleration due to gravity on that

alexandr402 [8]

Answer:

$g'=63.74\ m/s^2$

Explanation:

It is given that,

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The mass of an object is same everywhere. It does not depend on the location.

Let W' is the weight of the person on the surface of a nearby planet, W' = 5320 N

g' is the acceleration due to gravity on that planet. So,

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3 years ago

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Gravitational force of the star on planet 2, $F_{2}= G\frac{3m_{1}M}{(3R)^{2}}$

Ratio, $\frac{F_{1}}{F_{2}}= \frac{\frac{Gm_{1}M}{R^{2}}}{\frac{G3m_{1}M}{(3R)^{2}}}$

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2 years ago

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