3 years ago

The rate at which speed changes is called

Physics

1 answer:

pochemuha3 years ago

8 0

Answer:

Acceleration

Explanation:

I think so & hope it will help yuh!

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The atomic mass of an element is

inessss [21]

Here are the answers to the question. Make sure to give a valid reason, please.

A. the sum of the protons and neutrons in one atom of the element.

B. a ratio based on the mass of a carbon-12 atom.

C. a weighted average of the masses of an element's isotopes.

D. twice the number of protons in one atom of the element.

6 0

4 years ago

An amoeba has 1.00 x 1016 protons and a net charge of 0.300 pC. Assuming there are 1.88 x 106 fewer electrons than protons, If y

Xelga [282]

Answer:

The fraction of the protons would have no electrons $=1.88\times 10^{-10}$

Explanation:

We are given that

Amoeba has total number of protons= $1.00\times 10^{16}$

Net charge, Q=0.300pC

Electrons are fewer than protons= $1.88\times 10^6$

We have to find the fraction of protons would have no electrons.

The fraction of the protons would have no electrons

= $\frac{Fewer\;electrons}{Total\;protons}$

The fraction of the protons would have no electrons

= $\frac{1.88\times 10^{6}}{1.00\times 10^{16}}$

$=1.88\times 10^{-10}$

Hence, the fraction of the protons would have no electrons $=1.88\times 10^{-10}$

6 0

3 years ago

A rock moving a 15m/s accelerates at 9.8m/s for 12s. what is the final velocity of the rock?

ryzh [129]

1.25 is the answer to tht if im right but could be wrong

4 0

3 years ago

Visible light waves are ______ waves<br> A.mechanical <br> B.electromagnetic

motikmotik

B.Electromagnetic
explanation:

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3 years ago

How much heat does 25 g of aluminum lose when cooled from 100 ° C to 20 ° C? Express your result in BTU

grigory [225]

Answer:

1.7 BTU

Explanation:

q = mCΔT

q = (25 g) (0.9 J/g/°C) (100°C − 20°C)

q = 1800 J

q = 1800 J × (1 BTU / 1055 J)

q = 1.7 BTU

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3 years ago