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andrew-mc [135]
2 years ago
12

Answer the questions to help you understand your parachute and forces experiment. Use the data table below to record your data.

A sample entry has been made for you.
Note: For size, measure the distance between two parallel sides of the hexagon.
Physics
1 answer:
katen-ka-za [31]2 years ago
7 0
Ohh so hexagon is. Tool use the data
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U can do what is the strongest paper towel
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5th Grade. Please help! SC standards
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A batter hits two baseballs with the same force. One hits the ground near third base. The other is a home run out of the park. W
Basile [38]
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3 0
3 years ago
An airplane traveling at half the speed of sound emits a sound of frequency 4.68 kHz. (a) At what frequency does a stationary li
kkurt [141]

Answer:

(a) 9.36 kHz

(b) 3.12 kHz

Explanation:

(a)

V = speed of sound

v = speed of airplane = (0.5) V

f = actual frequency of sound emitted by airplane = 4.68 kHz = 4680 Hz

f' = Frequency heard by the stationary listener

Using Doppler's effect

f' = \frac{Vf}{V-v}

f' = \frac{V(4680)}{V-(0.5)V)}

f' = 9360 Hz

f' = 9.36 kHz

(b)

V = speed of sound

v = speed of airplane = (0.5) V

f = actual frequency of sound emitted by airplane = 4.68 kHz = 4680 Hz

f' = Frequency heard by the stationary listener

Using Doppler's effect

f' = \frac{Vf}{V+v}

f' = \frac{V(4680)}{V+(0.5)V)}

f' = 3120 Hz

f' = 3.12 kHz

6 0
3 years ago
2. A boy lifts a 30N toy car 3 meters
GarryVolchara [31]

Answer:

<h2>90 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 30 × 3

We have the final answer as

<h3>90 J</h3>

Hope this helps you

6 0
3 years ago
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