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Andreyy89
3 years ago
10

The findings of Henri Becquerel and the Curies helped to discredit what notion held for a very long time? That matter can never

be created or destroyed. Matter is made up of any smaller parts. Matter is radioactive and decays over time. That matter is indivisible and indestructible.
Physics
2 answers:
fiasKO [112]3 years ago
8 0
That matter s indivisible and indestructible.  This is because they discovered that certain elements, thought to be indivisible, can breakdown by radioactive decay and emit smaller, high energy particles and/or photons.
hjlf3 years ago
3 0

Answer:

That matter is indivisible and indestructible.

Explanation:

Matter is composed of many smaller parts known as atoms. It was earlier thought that atom is the smallest indivisible particle. Henri Becquerel and Curies  discovered radioactivity. Radioactivity is the phenomenon where an unstable atom disintegrates into a stable nuclei and releases energy along with, gamma, beta or alpha particle. With discovery of radioactivity, the notion that matter is indivisible and indestructible, was destroyed.

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KengaRu [80]

The number of jellybeans would be B.more than the gumdrops.

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3 years ago
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Rest and motion are relative terms. write in brief​
Greeley [361]

Answer:

Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.

Explanation With Example:

Imagine you are sitting inside a moving bus. When you look outside you will observe that you are moving. ... With respect to the roof of bus, you are at rest. Hence it is concluded that rest and motion are relative terms.

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3 years ago
How does proximity to oceans affect Temperatures and<br> rainfall amounts?
vampirchik [111]

Answer:

Because they absorb and emit heat more steadily than land, oceans help moderate temperatures in coastal areas, making winters warmer and summers cooler. Winds that blow in from across the oceans bring more rainfall and higher humidity.

Explanation:

4 0
3 years ago
At an accident scene on a level road, investigators measure a car's skid mark to be 93 m long. It was a rainy day and the coeffi
USPshnik [31]

Answer:

u = 25 m/s

Explanation:

given,                                

length of skid = 93 m          

coefficient of friction = 0.35

final velocity = 0 m/s              

initial velocity = ?                        

force here is friction  f = μ mg

F = ma                                                

now com paring                      

-μ mg = m a                      

a = - μ g                    

a = - 0.35 x 9.8              

a = -3.43 m/s²

we know,              

v² = u² + 2 a s                        

0 = u² - 2 x 3.43 x 93                

u² = 637.98                    

u = 25.26 m/s                      

u = 25 m/s (two significant figure)

6 0
4 years ago
10. How do you use a triple-beam balance? Fill in the blanks.
wolverine [178]

Answer:

1st – Place the film canister on the <u>scale</u>.

2nd – Slide the large <u>weight </u>to the right until the arm drops below the line and then move it back one notch.

3rd – Repeat this process with the <u>top</u> weight. When the arm moves below the line, back it up one groove.

4th – Slide the <u>small </u>weight on the front beam until the <u>lines</u> match up.

5th – Add the amounts on each beam to find the total <u>mass </u>to the nearest tenth of a gram.

Explanation:

The triple beam balance is an instrument that is used in measuring the mass of substances to a very high degree of precision. The reading error is given by ±0.05 grams. The triple beam balance as the name implies has three beams that measure substances of different mass levels.

The beams are categorized as small, medium, and large. There is a balance on which the substance to be weighed is placed directly upon. To use this measuring device, the procedures mentioned above are followed.

5 0
4 years ago
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