2 years ago

Say you were at mission control on

Physics

1 answer:

Ad libitum [116K]2 years ago

4 0

Answer:

because mars is far

Explanation:

so if he shouts louder than he will hear it quicker

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A car travels at 2000 meters east in 40 seconds. What is the cars velocity

DerKrebs [107]

Answer:

50 ms⁻¹

Explanation:

Given that,

Distance Travelled =2000 meters

Time Taken =40 seconds

velocity = ?

we know,

velocity = Distance / Time

=(2000 / 40) ms⁻¹

=50 ms⁻¹

5 0

3 years ago

The human ear canal is about 2.9 cm long and can be regarded as a tube open at one end and closed at the eardrum. What is the fu

zhenek [66]

Answer:

$f=2887.93Hz$

Explanation:

Given data

Length L=2.9 cm=0.029m

Speed of sound v=335 m/s

to find

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Solution

As we know that frequency is given as:

f=v/λ

$f=\frac{v}{4L}\\ f=\frac{335m/s}{4(0.029m)} \\ f=2887.93Hz$

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leonid [27]

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Snezhnost [94]

Answer:

C is your answer good luck

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A 1,200-watt water heater is plugged into a 120-volt outlet and used for 1.5 hours. How much current runs through the water heat

stiv31 [10]

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