3 years ago

Based on your answer,what idea comes in to your mind?

1 answer:

5 0

Answer:

Homework · Free food · Loosing and robbing pencil · Forgetting book at home · Waiting for a Play time · My first bit · Lunch sharing · Assembly lines- standing in last just ...

Explanation:

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The frequency of a certain sound is 440 Mz. What is the wavelength of this sound when the temperature of the air is (a) 20°C; (b

Serggg [28]

Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

Let's plug in our given values and see what we get!

340

440

−

0.773

3 0

2 years ago

Plz help 20 points!!

vazorg [7]

Answer:

1-d

2- a

3-e

4-b

5-c

This is the correct sequence

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2 years ago

An empty 230 kg elevator accelerates upward

elena-s [515]

Answer:

7.2 as used in the equation

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3 years ago

A 47-kg packing crate is pulled with constant speed across a rough floor with a rope that is at an angle of 37 degrees above the

levacccp [35]

Tension in the rope due to applied force will be given as

$F = 142 N$

angle of applied force with horizontal is 37 degree

displacement along the floor = 6.1 m

so here we can use the formula of work done

$W = F d cos\theta$

now we can plug in all values above

$W = 142 * 6.1 * cos37$

$W = 691.8 J$

So here work done to pull is given by 691.8 J

8 0

3 years ago

6. The average atomic mass of hydrogen is amu. 7. If a molecule is made of similar kind of atoms, then it is called atomic molec

Roman55 [17]

Answer/
I have no idea i’m so sorry

Explanation/
Have a good day

8 0

3 years ago

Based on your answer,what idea comes in to your mind?​

Based on your answer,what idea comes in to your mind?