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2 years ago

There are four key economic questions that each economic system must address. True or False

SAT

2 answers:

vesna_86 [32]2 years ago

5 0

True
Please: Rate. Thank. Brainliest

Natasha2012 [34]2 years ago

3 0

The answer is True....

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What motivates you? Give me an example how you are dependable and responsible?

atroni [7]

Answer:

Are you asking us or- If this is on your text/exam, you should write what motivates you...its that simple lol

Explanation:

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2 years ago

Plz help ASAP plz The more resources you have to choose from during an open book test, the better you will do on the test becaus

Pani-rosa [81]

Answer: True
All the information will be in the book so that mean when you are taking the test you are able to see and find the answers

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2 years ago

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A wide-angle lens is bigger than a normal lens

Oliga [24]

Ok?.... why are you telling us this is it a question?

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2 years ago

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suppose you push a hockey puck of mass m across frictionless ice for a time 1.0 s, starting from rest, giving the puck speed v a

saul85 [17]

Answer: Twice the previous time would be taken to reach the same speed v with the puck of mass 2m.

Explanation:

Let a Force pushes the hockey puck of mass m.

Then acceleration, a= \frac{F}{m}a=mF

From the equation of motion,

\begin{gathered}\➪ v=u+at\\ v=0+\frac{F}{m}\Delta t\end{gathered}⇒v=u+atv=0+mFΔt ......(1)

In the second case, when mass is 2m, then acceleration,

a'=\frac{F}{2m}a′=2mF

and t' is the time taken.

The final speed is v,

\begin{gathered}\➪ v=0+ a't'\\ \➪ \frac {F}{m}\Delta t=\frac{F}{2m}t'\\ \➪ t'= 2\Delta t\end{gathered}⇒v=0+a′t′⇒mFΔt=2mFt′⇒t′=2Δt using equation (1)

Hence, it would take two times the previous amount of time to push the pluck of double mass.

 I hope this is understandable and if my answer helped you please can you give me a brainliest its will really help me and thank you have a nice day!!

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2 years ago

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Top + bottom = ???????????????????

schepotkina [342]

Answer:

Top + bottom = Middle

Explanation:

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2 years ago