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3 years ago

Physical Science Investigating Sound Waves lab PLEASE HELP ME WITH MY LAB!!!!!!!!!

Physics

2 answers:

Fed [463]3 years ago

7 0

What’s the question so that i can help you

ra1l [238]3 years ago

3 0

There needs to be a picture or a question for us to help

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two horses pull against a rope with forces of 100 newtons in opposite directions. this is an example of

statuscvo [17]

It is an example of balanced force.

hope this helps. good luck

4 0

3 years ago

Read 2 more answers

a) What is the average useful power output of a person who does6.00×10^6Jof useful work in 8.00 h? (b) Working at this rate, how

NARA [144]

Answer:

208.33 W

141.26626 seconds

Explanation:

E = Energy = $6\times 10^6\ J$

t = Time taken = 8 h

m = Mass = 2000 kg

g = Acceleration due to gravity = 9.81 m/s²

h = Height of platform = 1.5 m

Power is obtained when we divide energy by time

$P=\frac{E}{t}\\\Rightarrow P=\frac{6\times 10^6}{8\times 60\times 60}\\\Rightarrow P=208.33\ W$

The average useful power output of the person is 208.33 W

The energy in the next part would be the potential energy

The time taken would be

$t=\frac{E}{P}\\\Rightarrow t=\frac{mgh}{208.33}\\\Rightarrow t=\frac{2000\times 9.81\times 1.5}{208.33}\\\Rightarrow t=141.26626\ s$

The time taken to lift the load is 141.26626 seconds

5 0

4 years ago

A team of engineers is working together to design a new airplane. The team members each live in different cities. For which purp

Ierofanga [76]

Answer:

The internet is most useful to them because they use it to communicate.

Explanation:

If I were to send a message to my brother in Florida, through the internet, while I'm in Pennsylvania he would get it in minutes. On the other hand if I were going to meet him and then explain what I wanted to tell him in person it would take a much longer time.

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3 years ago

Help me and you will meet your favorite singer at your door.

Goshia [24]

Sunlight, because it provides a source of energy is the answer because plants also provide a food source (please put as brainliest answer)

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3 years ago

Read 2 more answers

What is power?

Blizzard [7]

Answer:

Explanation:

P=Work/Time

The rate at which work is done matches that.

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4 years ago