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Lostsunrise [7]
3 years ago
10

7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long

Chemistry
1 answer:
Hunter-Best [27]3 years ago
4 0

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

a=\frac{v-u}{t}

thus,

t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds

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egoroff_w [7]

Answer:

<h2>6.91 </h2>

Explanation:

To find the pH we must first find the pOH

The pOH can be found by using the formula

pOH = - log [ {OH}^{-} ]

We have

pOH =  -  log(8.2 \times  {10}^{ - 8} )  \\  = 7.086186...

pOH = 7.09

Next we use the equation

pH = 14 - pOH

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pH = 14 - 7.09

We have the final answer as

<h3>6.91</h3>

Hope this helps you

8 0
3 years ago
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antoniya [11.8K]
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7 0
2 years ago
PLEASE HELP!!
omeli [17]

Answer:

8/3 hours

Explanation:

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by the way i'm in 6th grade

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3 years ago
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What type of bonds does carbon form with other elements?
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A model of fossils formed on land, on the shore, and in water was set up in Ms. Bill’s classroom. One of the students commented
zubka84 [21]

Answer:

d.- The model does not provide information about the type of rock in which fossils form.

Explanation:

The fossils can be located in different parts like on land, shore and water. But, they were formed at different time, that means, they live in different ages, that is the reason why the model need to include the type of rock. Remember fossil form at different ages and with the pass of time different layers of rock formed.

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