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garik1379 [7]
3 years ago
13

How does the government shape technology?

Physics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

Society is a group of people that share similar values and beliefs.

The development of technology is affected by society and its changing values, politics, and economics

Explanation:

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Distance Between Two Cars A car leaves an intersection traveling west. Its position 4 sec later is 19 ft from the intersection.
faltersainse [42]

Answer:

The answer to the question is;

The rate at which the distance between the two cars is changing is equal to 14.4 ft/sec.

Explanation:

We note that the distance  traveled by each car after 4 seconds is

Car A = 19 ft in the west direction.

Car B = 26 ft in the north direction

The distance between the two cars is given by the length of the hypotenuse side of a right angled triangle with the north being the y coordinate and the  west being the x coordinate.

Therefore, let the distance between the two cars be s

we have

s² = x² + y²

= (19 ft)² + (26 ft)² = 1037 ft²

s = \sqrt{1037 ft^2} = 32.202 ft.

The rate of change of the distance from their location 4 seconds after they commenced their journeys is given by;

Since s² = x² + y² we have

\frac{ds^{2} }{dt} = \frac{dx^{2} }{dt}  + \frac{dy^{2} }{dt}

→ 2s\frac{ds }{dt} = 2x\frac{dx}{dt}  + 2y\frac{dy }{dt} which gives

s\frac{ds }{dt} = x\frac{dx}{dt}  + y\frac{dy }{dt}

We note that the speeds of the cars were given as

Car B moving north = 12 ft/sec, which is the y direction and

Car A moving west = 8 ft/sec which is the x direction.

Therefore

\frac{dy }{dt} =  12 ft/sec and

\frac{dx}{dt} = 8 ft/sec

s\frac{ds }{dt} = x\frac{dx}{dt}  + y\frac{dy }{dt} becomes

32.202 ft.\frac{ds }{dt} = 19 ft \times 8 \frac{ft}{sec}  + 26ft\times 12\frac{ft}{sec}  = 464 ft²/sec

\frac{ds }{dt} = \frac{464\frac{ft^{2} }{sec} }{32.202 ft.} = 14.409 ft/sec ≈ 14.4 ft/sec to one place of decimal.

3 0
3 years ago
QUESTION 45
Olin [163]
I do not know if it is correct but I think it is between B or C
3 0
3 years ago
In the pictire ,can we separate hydrogen (H) from oxygen (O)?<br><br>Paanswer nga po.....​
prisoha [69]

A.)

Water is the name of the pure substance H₂O

B.)

Hydrogen and Oxygen are the compound of water

C.)

Yes, we can

D.)

This process known as Electrolysis

3 0
2 years ago
An object has an initial velocity of 15 m/s and a constant acceleration of 4 m/s2. How long will it take before its final veloci
netineya [11]

Based on the calculations, it would take 7.5 seconds before the final velocity of this object would be equal to three times its initial velocity.

<u>Given the following data:</u>

  • Initial velocity = 15 m/s.
  • Constant acceleration = 4 m/s².
  • Final velocity = 3 × 15 = 45 m/s.

<h3>How to calculate the acceleration of an object?</h3>

Mathematically, acceleration can be calculated by using the first equation of motion:

v = u + at

<u>Where:</u>  

  • v is the final velocity.
  • u is the initial velocity.
  • t is the time measured in seconds.

Making t the subject of formula, we have:

t = (v - u)/a

Substituting the given parameters into the formula, we have:

t = (45 - 15)/4

t = 30/4

t = 7.5 seconds.

Read more on acceleration here: brainly.com/question/24728358

#SPJ1

4 0
2 years ago
Henery takes a boat ride for 15 mins to reach his destination. If the boat was traveling at 6meters/seconds,how far did the boat
Luba_88 [7]
I'm pretty sure its 5,400
7 0
3 years ago
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