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fomenos
4 years ago
11

PLEASE HELP!!

Physics
1 answer:
Elena-2011 [213]4 years ago
7 0
I think it is Circulatory & muscular because it is Improving your endurance and provides numerous health benefits, including better heart health, protection from injury and weight control..?
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Solve numerical problem. Please give me step - step explanation Help me out plz<br>​
CaHeK987 [17]

Answer:

You should multiply 60 kg*9.8 and answer will come.

Hope this will help you.

7 0
3 years ago
A stationary horn emits a sound with a frequency of 228 Hz. A car is moving toward the horn on a straight road with constant spe
stiks02 [169]

Answer: 26.84 m/s

Explanation:

Given

Original frequency of the horn f_o=228\ Hz

Apparent frequency f'=246\ Hz

Speed of sound is V=340\ m/s

Doppler frequency is

\Rightarrow f'=f_o\left(\dfrac{v+v_o}{v-v_s}\right)

Where,

v_o=\text{Velocity of the observer}\\v_s=\text{Velocity of the source}

Insert values

\Rightarrow 246=228\left[\dfrac{340+v_o}{340-0}\right]\\\\\Rightarrow 366.84=340+v_o\\\Rightarrow v_o=26.8\ m/s

Thus, the speed of the car is 26.84\ m/s

4 0
3 years ago
Help omg
Drupady [299]
52.4934 meters per second
3 0
3 years ago
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C) Explain the following.<br>Keftles, cooking pans and iron boxes have polished surfaces​
Monica [59]

Answer:

Polished surfaces reduce heat loss

5 0
3 years ago
Which of the following best describes a magnet?
12345 [234]
C
Because magnet involves 2 opposite poles so therefore it would have to be C
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