How many hours should a person each day?

SAT

1 answer:

Maru [420]4 years ago

7 0

You didn't specify, but a human should be awake no longer than 16 hours a day (if this is what you meant)

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Helena needs 3. 5 cups of flour per loaf of bread and 2. 5 cups of flour per batch of muffins. She also needs 0. 75 cup of sugar

Sladkaya [172]

Answer:

2 loaves of bread and four batches of muffins

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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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The function f has the property that, for all x, 5f(x) = f(5x). If f(20) = 40, what is the value of f(4)?

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Answer:

Explanation:

5x=40

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