3 years ago

1: Why do the work of scientist cannot be pinned down to a single year?

Physics

1 answer:

zalisa [80]3 years ago

7 0

It can't be pinned down to a single year because scientific work takes place over many years of research and discovery.

You might be interested in

(1) A Newton is 1 kgm/s2 . Is this a fundamental unit or a derived unit?

Mrac [35]

A Newton is a derived unit.
Hope that helped:)

8 0

2 years ago

I<br>Cghggbbbtffhhtrf bvbbjkko

adelina 88 [10]

kzkjskßkjxjdkxkdksk

Explanation:

jsjsjskskkskfj

5 0

2 years ago

What do you mean by reflection of sound

Bogdan [553]

Answer:

Reflection of sound waves also leads to echoes. Echoes are different than reverberations. Echoes occur when a reflected sound wave reaches the ear more than 0.1 seconds after the original sound wave was heard. ... Reflection of sound waves off of curved surfaces leads to a more interesting phenomenon.

8 0

2 years ago

A tennis ball (m=0.060 kg) is moving horizontally at 20 m/s toward a tennis player who hits it straight back at 26 m/s. What is

Rus_ich [418]

Answer:

0.36 kg-m/s

Explanation:

Given that,

Mass of a ball, m = 0.06 kg

Initial velocity of the ball, u = 20 m/s

Final velocity of the ball, v = 26 m/s

We need to find the change in momentum of the tennis ball. It is equal to the final momentum minus initial momentum

$\Delta p=m(v-u)\\\\=0.06\times (26-20)\\\\=0.36\ kg-m/s$

So, the change in momentum of the ball is 0.36 kg-m/s.

4 0

2 years ago

Three-fourths of the elements on the

77julia77 [94]

Answer:

Explanation:

because the metalloids are the thing in the middle

8 0

2 years ago