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jok3333 [9.3K]
3 years ago
13

Which of the following advancements could science and technology reasonably contribute to society?

Physics
2 answers:
Alexxx [7]3 years ago
7 0

Answer:            

idk search it on google chrome

Explanation:

tia_tia [17]3 years ago
3 0

Answer:

The effects of technological advancement are both positive and negative. Positively, technology advancement has simplified the way we do things, it saves time, it increases on production, it simplifies communication, it has improved health care and it has also improved our educational environment.

Explanation:

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Maurinko [17]

Answer:

rlly??

Explanation:

4 0
3 years ago
Read 2 more answers
If a snowboarder’s initial speed is 4 m/s and comes to rest when making it to the upper level. With a slightly greater initial s
Brrunno [24]

(a) At a corresponding hill on Earth and a lesser gravity on planet Epslion, the height of the hill will cause a reduction in the initial speed of the snowboarder from 4 m/s to a value greater than zero (0).

(b) If the initial speed at the bottom of the hill is 5 m/s, the final speed at the top of the hill be greater than 3 m/s.

<h3>Conservation of mechanical energy</h3>

The effect of height  and gravity on speed on the given planet Epislon is determined by applying the principle of conservation of mechanical energy as shown below;

ΔK.E = ΔP.E

¹/₂m(v²- u²) = mg(hi - hf)

¹/₂(v²- u²) = g(0 - hf)

v² - u² = -2ghf

v² = u² - 2ghf

where;

  • v is the final velocity at upper level
  • u is the initial velocity
  • hf is final height
  • g is acceleration due to gravity

when u² = 2gh, then v² = 0,

when gravity reduces, u² > 2gh, and v² > 0

Thus, at a corresponding hill on Earth and a lesser gravity on planet Epslion, the height of the hill will cause a reduction in the initial speed of the snowboarder from 4 m/s to a value greater than zero (0).

<h3>Final speed</h3>

v² = u² - 2ghf

where;

  • u is the initial speed = 5 m/s
  • g is acceleration due to gravity and its less than 9.8 m/s²
  • v is final speed
  • hf is equal height

Since g on Epislon is less than 9.8 m/s² of Earth;

5² - 2ghf > 3 m/s

Thus, if the initial speed at the bottom of the hill is 5 m/s, the final speed at the top of the hill be greater than 3 m/s.

Learn more about conservation of mechanical energy here: brainly.com/question/6852965

5 0
2 years ago
During the first 5 seconds after a ball is dropped from rest, how far will it fall?
agasfer [191]
The answer is 125metre
5 0
3 years ago
Light traveling through a fluid (n = 1.273) strikes a crystal. If the angle of incidence is
pantera1 [17]

Answer:

n = 1.523

Explanation:

Snell's law

1.273sin32.89 = nsin26.99

6 0
3 years ago
The force that keeps a satellite in earth’s orbit is always directed away from the center of earth. true or false.
pshichka [43]
False............ It is in both directions in the form of centri-petal & fugal towards inwards and outwards respectively....
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