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Vladimir79 [104]
3 years ago
6

If you hold a heavy weight over your head, the work you do __________.

Physics
1 answer:
Katena32 [7]3 years ago
6 0

Answer:

Is zero.

Explanation:

I legit just had this question on my homework.

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PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (67pts)
laiz [17]

Answer:

a toy car was on the floor in the play room until the child applied force by starting to race with it. it accelerated and proceeded to move at 5m/s east. it came to a stop when the bedpost applied force to it.

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3 years ago
Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?
Korvikt [17]
Hydrogen is an element made of only one kind of atom
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3 years ago
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Two adjacent natural frequencies of an organ pipe are AMT determined to be 550 Hz and 650 Hz. Calculate (a) the M fundamental fr
allochka39001 [22]

Answer:

The fundamental frequency and length of the pipe are 100 Hz and 1.7 m.

Explanation:

Given that,

Frequency f = 550 Hz

Frequency f' = 650 Hz

We know that,

AMT pipe is open pipe.

(b). We need to calculate the length of the pipe

Using formula of organ pipe

f=\dfrac{nv}{2L}

For 550 Hz,

550=\dfrac{n\times340}{2L}...(I)

For 650 Hz,

650=\dfrac{(n+1)\times340}{2L}...(II)

From equation (I) and (II)

550-650=\dfrac{340}{2L}-\dfrac{340}{L}

L=\dfrac{340}{2\times100}

L=1.7\ m

(a). We need to calculate the fundamental frequency for n = 1

Using formula of  fundamental frequency

=f=\dfrac{n\lambda}{2L}

put the value of L

f=\dfrac{1\times340}{2\times1.7}

f=100\ Hz

Hence, The fundamental frequency and length of the pipe are 100 Hz and 1.7 m.

4 0
3 years ago
Define velocity??????
ira [324]

Answer:

the speed of something in a given direction.

Explanation:

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The demand equation for the Roland portable hairdryer is given as follows where x (measured in units of a hundred) is the quanti
lesya [120]

Answer:

Explanation:

The concept of elastic and inelastic demand is applied.

for an elastic demand, the elasticity must be greater than 1 and for an Inelastic demand, the elasticity must be less than 1.

The steps and appropriate calculation is as shown in the attached file.

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4 years ago
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