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3 years ago

Most elements in nature exist as mixture of two or more isotopes t or f

Physics

1 answer:

Licemer1 [7]3 years ago

3 0

Answer:

Atomic mass is a value that depends on the distribution of an element's isotopes in nature and the masses of those isotopes. Circle the letter of each sentence that is true about a carbon-12 atom. ... Most elements exist as a mixture of two or more isotopes.

So the answer is true.

Thank you and please rate me as brainliest as it will help me to level up

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A 45.0 g hard-boiled egg moves on the end of a spring with force constant 25.0 N/m. Its initial displacement 0.500 m. A damping

leva [86]

Answer:

0.02896 kg/s

Explanation:

$A_1$ = Initial displacement = 0.5 m

$A21$ = Final displacement = 0.1 m

t = Time taken = 0.5 s

m = Mass of object = 45 g

Displacement is given by

$x=Ae^{-\dfrac{b}{2m}t}cos(\omega t+\phi)$

At maximum displacement

$cos(\omega t+\phi)=1$

$\\\Rightarrow A_2=A_1e^{-\dfrac{b}{2m}t}\\\Rightarrow \dfrac{A_1}{A_2}=e^{\dfrac{b}{2m}t}\\\Rightarrow ln\dfrac{A_1}{A_2}=\dfrac{b}{2m}t\\\Rightarrow b=\dfrac{2m}{t}\times ln\dfrac{A_1}{A_2}\\\Rightarrow b=\dfrac{2\times 0.045}{5}\times ln\dfrac{0.5}{0.1}\\\Rightarrow b=0.02896\ kg/s$

The magnitude of the damping coefficient is 0.02896 kg/s

6 0

4 years ago

A magnetic field forms around a moving electric charge, resulting in a magnetic field.

Nookie1986 [14]

B.
how electric charges can be used to create a magnetic field
(how I know, just took it, the test I mean)

3 0

3 years ago

2. Which of the following is not used to calculate kinetic energy?

Komok [63]

Answer:

speed cannot be used to calculate the temperature

4 0

3 years ago

Read 2 more answers

PLS HELP THIS IS DUE IN TWO HOURS

Lemur [1.5K]

I think C orrrrrrr A

4 0

3 years ago

Read 2 more answers

I will give a Brainly to the best answer. Good luck, my good friends!

brilliants [131]

Hi

we know that

density=mass/volume

mass of liquid =6g= 6x10^-3kg.

volume of liquid=12ml=12x10^-3litre

density=6x10^-3/12x10^-3

=.5kg/liter

thanks for asking

3 0

3 years ago