3 years ago

What physical characteristics of sound can be used to determine the energy carried by sound waves? Explain.

Physics

1 answer:

padilas [110]3 years ago

3 0

Answer:

Explanation:

It transmits energy into the medium through its vibration. More energetic vibration corresponds to larger amplitude. The molecules move back and forth more vigorously. The loudness of a sound is also determined by the sensitivity of the ear.

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2. A new racecar track is being created, and the owners want the cars to complete 10

jeka57 [31]

Answer:

0.45 miles

Explanation:

since, car will be running on the edge of track, distance covered in one lap by car will be equal to circumference of track.\

we will use value of pi as 22/7

Circumference for any circular shape is given by $\piD$ $\pi D$

Hence, in one lap $\pi D$ distance will be covered

in 7 laps $7 \pi D$ distance will be covered.

but is given that 7 laps should be equal to 10 miles

so 10 miles will be equal to $7\pi D$

$7\pi D= 10 \ miles\\=> 7*(22/7)* D= 10 \ miles\\=> 22D = 10 \ miles\\=> D = 10/22 \ miles\\=> D = 0.45 \ miles$

Thus, diameter of track will be 0.45 miles to meet the requirement.

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3 years ago

which energy transfers are used in the electric coil of a baseboard heater? A)conduction and radiation B)convection and radiatio

Lorico [155]

conduction and radiation

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4 years ago

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Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

Pavlova-9 [17]

Adding energy (heating) atoms and molecules increased in motion resulting in an increase in temperature. The answer is Kinetic Energy

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2 years ago

You volunteer to travel to a newly discovered planet about 30 light years from earth. At what speed do you need to travel to rea

Mars2501 [29]

6 light years speed

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3 years ago

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A 1400 kg aircraft going 40 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and

Leni [432]

Answer:

67.6 m

Explanation:

For this problem, we just need to analyze the motion of the two planes after the collision.

The two planes stick together and move with a velocity of

u = 19.3 m/s

The problem tells us that they skid until they stop: so, their final velocity is

v = 0

Since the velocity is not constant, this means that they are accelerating.

We also know that they skid for a time of

t = 7 s

Therefore, we can find their stopping distance using the following suvat equation

$s=(\frac{u+v}{2})t$

And substituting, we find

$s=(\frac{0+19.3}{2})(7)=67.6 m$

6 0

3 years ago