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andrezito [222]

3 years ago

6

Some chlorine atoms have an atomic mass of 37, while others have an atomic mass of 35. What is the difference between the two ty

pes of chlorine atom?
A. The number of ions

B. The number of neutrons

C. The number of protons

D. The number of electrons

1 answer:

cricket20 [7]3 years ago

3 0

Answer:

B. the number of neutrons

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Upon examining layer M, you find that it contains a small proportion of the radioactive isotope - Potassium-40, which decays int

Westkost [7]

Answer:

t = 2.6 billion years

Explanation:

If potassium becomes 25% of its initial value

so we can say it becomes half two times

as we know that 25% means it is 1/4 times of initial value

so we will have

$N = N_o e^{-\lambda t}$

here we know that

$N = 0.25 N_o$

$0.25 = e^{-\lmabda t}$

$ln 4 = (\frac{ln 2}{T_{1/2}}) t$

$t = 2 T_{1/2}$

$t = 2(1.3 billion \: years)$

t = 2.6 billion years

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An object is dropped into a beaker containing liquid the object drops to the bottom of the beaker therefore

Wittaler [7]

The objects density is greater than one

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3 years ago

In which position are the earth, moon, and sun during a full moon?

Arte-miy333 [17]

Answer:

The answer is B, although technically that is an eclipse.

5 0

4 years ago

Light with a wavelength of 600 nm shines onto a single slit, and the diffraction pattern is observed on a screen 2.5 m away from

Nostrana [21]

Answer:

"6.67 mm" is the right solution.

Explanation:

The given values are:

L = 2.5 m
y = .0125
λ = 600 nm

As we know, the equation

⇒ $\frac{y}{L} =\frac{x \lambda}{a}$

On substituting the values, we get

⇒ $\frac{.0125}{2.5}=\frac{(1)(600\times 10^{-9}) }{a}$

On applying cross multiplication, we get

⇒ $.0125a=2.5 (600\times 10^{-9})$

⇒ $a=\frac{2.5(600\times 10^{-9})}{.0125}$

⇒ $=1.2\times 10^{-4} \ m$

For new distance, we have to put this value of "a" in the above equation,

⇒ $\frac{y}{1.5} =\frac{(1)(600\times 10^{-9})}{1.2\times 10^{-4}}$

⇒ $(1.2\times 10^{-4})y=1.5(600\times 10^{-9})$

⇒ $y=\frac{1.5(600\times 10^{-9})}{1.2\times 10^{-4}}$

⇒ $=3.22\times 10^{-3} \ m$

The total distance will be twice the value of "y", we get

= $6.67\times 10^{-3} \ m$

or,

= $6.67 \ mm$

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Larry is taking a walk in the park. The pollen in the air makes him sneeze constantly. What line of defense is his immune system

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The First line of defence

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