3 years ago

Which of the following best describes the way that scientists make observations

1 answer:

6 0

I don’t see any answer choice but the best way is asking questions about the natural phenomenon, making hypothesis, and predicting the consequences in the hypothesis.

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How many electrons can a nucleas hold

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A nuclear can hold 2 electrons

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3 years ago

“All dogs bark. Fido barks. Thus, Fido is a dog,” is an example of which of the following?

nalin [4]

Deductive reasoning?

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3 years ago

The electric field 2.5 mm from a uniform sheet of charge is σ=800, NC. How much charge is contained in a 5.0x5.0 cm section of t

slamgirl [31]

Answer:

The charge is $2.75\times10^{-13}\ C$

Explanation:

Given that,

Distance = 2.5 mm

Electric field = 800 NC

Length $L=5.0\times5.0\times10^{-4}\ m$

We need to calculate the linear charge density

Using formula of linear charge density

$E=\dfrac{2k\lambda}{r}$

$\lambda=\dfrac{Er}{2k}$

Put the value into the formula

$\lambda=\dfrac{800\times2.5\times10^{-3}}{2\times9\times10^{9}}$

$\lambda=1.1\times10^{-10}\ C/m$

We need to calculate the charge

Using formula of charge

$Q=\lambda\timesL$

Put the value into the formula

$Q=1.1\times10^{-10}\times(5.0\times5.0\times10^{-4})$

$Q=2.75\times10^{-13}\ C$

Hence, The charge is $2.75\times10^{-13}\ C$

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3 years ago

Two masses (5.3kg and 7.5kg) are fastened together with a small amount of explosive. They are loaded into a spring gun that is t

Vsevolod [243]

Answer:

8.2

Explanation:

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3 years ago

If an object has a positive charge, are the electrons from another object more likely to be attracted to it or to repel it?

Vlad1618 [11]

Answer:

attracted

Explanation:

Electrons are negative.

A positively charged object will attract a negatively charged object

3 0

2 years ago

Read 2 more answers