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Zepler [3.9K]
3 years ago
13

A hot air balloon has a mass of 300 k gincluding the basket. The hot air inside the balloon weighs 17,000 N. Determine the maxim

um load that the balloon is able to lift displaces 25,000 N of cold air. Use 10 m/s​2 for gravity.
Physics
1 answer:
padilas [110]3 years ago
7 0

Answer:

500 kg

Explanation:

If 17000 N hot air weight displaces 25000 N cold air weight, then the difference of 25000 - 17000 = 8000 N in weight would result in the buoyant force that lift the whole system.

If g = 10m/s2 then the total mass that it can lift (including the 300kg basket) is

8000 / 10 = 800 kg

So the maximum additional load that the balloon is able to lift is

800 - 300 = 500 kg

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prohojiy [21]

Answer:

v= 449.8 m/s

Explanation:

Given data

Frequency=  346Hz

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The expression below is used to find the speed

v= f \lambda\\\\

substitute

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Hence the speed is v= 449.8 m/s

5 0
3 years ago
Hai vận động viên chạy trên cùng 1 đoạn đường, vận động
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Answer:

Pemain A

Explanation:

Mengingat data berikut;

Kecepatan pemain A = 12 m/s

Kecepatan pemain B = 36 km/h

Untuk menentukan siapa pelari tercepat di antara dua pemain;

Pertama-tama, kita harus mengubah kecepatan menjadi satuan standar pengukuran yang sama.

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Oleh karena itu, dibandingkan dengan kecepatan pemain A; pemain A lebih cepat.

6 0
3 years ago
Two of the three tuning forks have known frequencies. When a 610 Hz fork and the unknown fork are struck together, four beats pe
RUDIKE [14]

-- In combination with 610 Hz, the beat frequency is 4 Hz.

So the unknown frequency is either (610+4) = 614 Hz
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In combination with 605 Hz, the beat frequency will be
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-- In actuality, when combined with the 605 Hz, the beat
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So the unknown is (605+9) = 614 Hz.
 
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Nastasia [14]

Answer:

right

Explanation:

4 0
2 years ago
Help pls.!! and explain please
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Answer:

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7 0
3 years ago
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