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3 years ago

14

Hurry help me pls !!!!!

2 answers:

likoan [24]3 years ago

8 0

It will be A. Limestone mostly a rock in shallow water areas. Hope this helps! Mark brainly please!

Andreyy893 years ago

4 0

Answer:

A. limestone

Explanation:

Limestone is usually a biological sedimentary rock, forming from the accumulation of shell, coral, algal, fecal, and other organic debris. It can also form by chemical sedimentary processes, such as the precipitation of calcium carbonate from lake or ocean water.

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A piece of plastic has a net charge of +9.9 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60

Leto [7]

Answer:

The number of protons 6.19 more than electron.

Explanation:

Given that,

Charge $Q=+9.9\times10^{-6}\ C$

We know that,

formula of charge

$Q = nc$

Where,

Q = total charge

n = number of protons

e = charge of electron

Put the value into the formula

$n = \dfrac{Q}{e}$

$n=\dfrac{9.9\times10^{-6}}{1.6\times10^{-19}}$

$n=6.1875\times10^{13}\ C$

According to statement of question

Divide the answer by $10^{13}$

$n=\dfrac{6.1875\times10^{13}}{10^{13}}$

$n=6.19\ C$

Hence, The number of protons 6.19 more than electron.

6 0

3 years ago

The skateboarder weighs 75 kilogram. Calculate the potential energy of the skateboarder sliding on the track when his height abo

ArbitrLikvidat [17]

Answer:F(of gravity) = MA

F(normal force) = MA * cos(angle)

F = 72 * 9.81 * cos28

Don't have a calculator, so can't really do all the math right there. So just plug that in

Explanation:

i dont really know

7 0

3 years ago

Read 2 more answers

1. Johnny wants to know where the water line is in a dark well. He drops a penny into the well and counts until he hears the pen

777dan777 [17]

Answer:

3 feet down

Explanation:

i think

8 0

3 years ago

A flashing red traffic light at an intersection means

k0ka [10]

Just do what u would do if u were at a stop sign

5 0

3 years ago

True or false, the older rocks tend to be closer to the tear in the ocean floor

Natali5045456 [20]

Answer:

false!!

your welcome!!!!

4 0

3 years ago