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lord [1]
3 years ago
13

Someone please helpppp!

Physics
1 answer:
Vlad1618 [11]3 years ago
8 0
I believe it’s A, i could be wrong tho 3
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Cosmologists hypothesize and form theories to explain areas of the universe that are currently
topjm [15]

Answer:

True

Explanation:

However I do Believe that with the technological advancements we have made we could explore unexplored areas

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What question did use of a telescope by hubble answer A) Is earth the center of the universe B) Is the sun the center of the uni
cestrela7 [59]

Answer: C

Explanation:

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In which instrument of the following the water works as a bulb
Montano1993 [528]

Answer:

hydrometer

Explanation:

A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water.

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3 years ago
PLEASE ANYONE CAN HELP ME !E.x/A block of metal has a volume of 0.09 m3
LuckyWell [14K]

Answer:

B = 1058.4  N

Explanation:

Given that,

The volume of a metal block, V = 0.09 m³

The density of fluid, d = 1200 kg/m³

We need to find the buoyant force when it's Completely  immersed in brine. The formula for the buoyant force is given by :

B=\rho gV

g is acceleration due to gravity

B=1200\times 9.8\times 0.09\\\\B=1058.4\ N

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3 years ago
Which is a correct representation of .000025 in scientific notation?
lidiya [134]

0.000025 → 2.5 × 10⁻⁵ → 2.5E-5

<h3>Further explanation</h3>

Scientific notation represents the precise way scientists handle exceptionally abundant digits or extremely inadequate numbers in the product of a decimal form of number and powers of ten. Put differently, such numbers can be rewritten as a simple number multiplied by 10 raised to a certain exponent or power. It is a system for expressing extremely broad or exceedingly narrow digits compactly.

Scientific notation should be in the form of  

\boxed{ \ a \times 10^n \ }

where  

\boxed{ \ 1 \leq a \ < 10 \ }

The number 'a' is called 'mantissa' and 'n' the order of magnitude.

From the key question that is being asked, we face the standard form of 0.000025.

\boxed{ \ 0.000025 = \frac{25}{1,000,000} \ }

The coefficient (or mantissa), i.e. 25, is still outside of 1 ≤ a < 10. Both the numerator and denominator are divided by 10.

\boxed{ \ 0.000025 = \frac{2.5}{100,000} \ }

The denominator consists precisely of five zero digits.

Hence, 0,000025 is written in scientific notation as  \boxed{\boxed{ \ 2.5 \times 10^{-5} \ or \ 2.5E - 5 \ }}

The inverse of scientific notation is the standard form. To promptly change scientific notation into standard form, we reverse the process, move the decimal point to the right or left. This expanded form is called the standard form.

<u>A notable example:</u>

\boxed{ \ 3.0 \times 10^{8} \ Hz \ \rightarrow 300,000,000 \ Hz \ or \ 300 \ MHz}

<h3>Learn more</h3>
  1. 0.00069 written in scientific notation brainly.com/question/7263463
  2. Express the pill’s mass in 0.0005 grams using scientific notation or in milligrams brainly.com/question/493592
  3. What 3 digits are in the units period of 4,083,817 brainly.com/question/558692

Keywords: which is, a correct representation, 0.000025, in scientific notation, expanded form, exponent, base, standard form, mantissa, the order of magnitude, power, decimal, very large, small, figures, abundant digits, inadequate

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