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3 years ago

illustrate the difference between a neutral object, a positively charged object, and a negatively charged object

Physics

1 answer:

Feliz [49]3 years ago

3 0

Answer:

A neutral object has the same charge. A positively charged object have positive charges called electrons. A negatively charged object have negative charges called protons.

Diagram of each down below -

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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>

0.00069 written in scientific notation brainly.com/question/7263463
Express the pill’s mass in 0.0005 grams using scientific notation or in milligrams brainly.com/question/493592
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

6 0

4 years ago

Read 2 more answers

Planck's constant, h, is 6.626 x 10-34 js. the speed of light in a vacuum, c, is 3.00 x 108 m/s. calculate the frequency of a gr

Misha Larkins [42]

Frequency= velocity of light/wave length
Fr= 3×10^8/510×10^-9
Frequwency=5.88×10^14 Hz

4 0

4 years ago

A wave pulse on a spring is 5.40 cm high and oriented upward. This pulse meets another pulse of the same shape which is 1.10 cm

Ghella [55]

The resulting positive amplitude of the two waves after the superimposition is 4.30 cm.

<h3>Amplitude of the waves</h3>

The amplitude of the waves is the maximum displacement of the wave. This is the vertical position of the wave measured from the zero origin.

After the superimposition of the two similar waves, the resulting amplitude will be less than the initial amplitude of the wave with the highest vertical height since the superimposition creates destructive interference.

Resulting amplitude of the two waves is calculated as;

A = 5.4 cm - 1.10 cm

A = 4.30 cm

Thus, the resulting positive amplitude of the two waves after the superimposition is 4.30 cm.

Learn more about amplitude of waves here: brainly.com/question/25699025

3 0

2 years ago

A child throws a baseball directly upward. what are the signs of the velocity and acceleration of the ball immediately after the

navik [9.2K]

(-,-)

when the ball is thrown upward, the ball experiences gravitational acceleration = 9.8 m/s² which is always downward.

So the velocity of ball starts decreasing and reaches 0 at highest point.

so, the velocity and acceleration are negative with respect to ball's direction of moving when the ball is going upward.

3 0

3 years ago

. A little car has a maximum acceleration of 2.57 m/s2. What is the new maximum acceleration of the little car if it tows anothe

valkas [14]

Answer:

$a'=1.285\ m/s^2$

Explanation:

Let m be the mass of a little car and m' be the mass of another car.

We know that,

Force = mass × acceleration

ATQ,

m × a = 2m × a'

a = 2 × a'

$a'=\dfrac{a}{2}\\\\a'=\dfrac{2.57}{2}\\\\a'=1.285\ m/s^2$

So, the acceleration of another little car is equal to $1.285\ m/s^2$ .

8 0

3 years ago