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Brums [2.3K]
3 years ago
7

What is the correct definition of an element?

Physics
2 answers:
Anni [7]3 years ago
5 0
A part or aspect of something abstract, especially one that is essential or characteristic.
I could be wrong :|
Lostsunrise [7]3 years ago
4 0
“An element is a substance whose atoms all have the same number of protons: another way of saying this is that all of a particular element's atoms have the same atomic number. Elements are chemically the simplest substances and hence cannot be broken down using chemical reactions.”
i just looked this up lol, but hope this helps! :)
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A 5,000 Kg monster truck is traveling at 11 m/s. when it sees an obstacle it is going to crush during the Monster truck rally, i
avanturin [10]

The change in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500

<h3>What is kinetic energy?</h3>

Kinetic energy is the energy of a body due to its motion.

To calculate the increase in the kinetic energy of the monster truck, we use the formula below.

Formula:

  • ΔK.E = m(v²-u²)/2............. Equation 1

Where:

  • ΔK.E = Increase in kinetic energy of the monster truck
  • m = mass of the monster truck
  • v = final velocity of the monster truck
  • u = initial velocity of the monster truck.

From the question,

Given:

  • m = 5000 kg
  • v = 18 m/s
  • u = 11 m/s.

Substitute these values into equation 1

  • ΔK.E = 5000(18²-11²)/2
  • ΔK.E = 2500(324-121)
  • ΔK.E = 2500(203
  • ΔK.E = 507500 J

Hence, The increase in the kinetic energy of the monster truck during the time is 507500 J and the right option is B). 507500.
Learn more about kinetic energy here: brainly.com/question/25959744

5 0
3 years ago
Which sentence uses the correct adverb to make a comparison?
Arturiano [62]
Option C would be the right one
8 0
3 years ago
Find the linear function C Equals=​f(F) that gives the reading on the Celsius temperature scale corresponding to a reading on th
Juli2301 [7.4K]

Answer:

a. C(F) = (5/9).F - (160/9)

b. They both readings are equal at C = F = - 40

Explanation:

They are telling us that we are looking for a linear function

If C(F) = a.F + b is the linear function, we use the data to find a and b

C(32) = a.32 + b

0 = a.32 + b

b = - (a.32)     (1)

And then

C(212) = a.212 + b

100 = a.212 + b    (2)

replacing (1) in (2) we obtain

100 = a.212 +  [-(a.32)]

100 = a.212 - a.32

100 = 180.a

a = 100/180

a = 5/9

If a = 5/9 then b = -(a.32)

b = - (5/9).32

b = - (160/9) and the linear function is

C(F) = (5/9).F - (160/9)

For b. they are asking us for a X reading. We must equalize C and F

X = (5/9).X - (160/9)

(4/9).X = - (160/9)

X = -40

C = F at temperature X = - 40

6 0
3 years ago
What is agrculture and it means​
Zina [86]
<h2>Answer:</h2>

<u><em>Agriculture is the science, the practice of cultivating the soil, art, producing crops, raising livestock, and in varying degrees the preparation and marketing of the resulting products cleared the land to use for agriculture.</em></u>

<h2>Explanation: </h2>

<em>This is what I found during my research and I hope this helps. Correct me if I am incorrect! Have a good one. </em>

<h2>≧◉◡◉≦</h2>
5 0
3 years ago
Two violinists are trying to play in tune. However, whenever they play their A string at the same time they hear a beat frequenc
kaheart [24]

Answer:

The possible frequencies for the A string of the other violinist is 457 Hz and 467 Hz.

(3) and (4) is correct option.

Explanation:

Given that,

Beat frequency f = 5.0 Hz

Frequency f'= 462 Hz

We need to calculate the possible frequencies for the A string of the other violinist

Using formula of frequency

f'=f_{1}-f...(I)

f'=f_{1}+f...(II)

Where, f= beat frequency

f₁ = frequency

Put the value in both equations

f'=462-5=457\ Hz

f'=462+5=467\ Hz

Hence, The possible frequencies for the A string of the other violinist is 467 Hz and 457 Hz.

4 0
3 years ago
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