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Dimas [21]
2 years ago
12

1. In an urban area, what can you expect

Physics
2 answers:
pantera1 [17]2 years ago
8 0

Answer: Most inhabitants of urban areas have nonagricultural jobs meaning not of, relating to, or used in farming and agriculture nonagricultural products/land. Urban areas are very developed, meaning there is a density of human structures such as houses, commercial buildings, roads, bridges, and railways.

Explanation:

If you appreciate my answer please consider marking it Brainliest. Thank you!

zysi [14]2 years ago
8 0

A huge population and a great number of buildings. Urban is not where you find the country, it is the city, where you find many different places, people, buildings,  and it is very developed, or is developed.

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You and a friend each carry a 15 kg suitcase up two flights of stairs, walking at a constant speed. Take each suitcase to be the
AlekseyPX

Answer:

Both of you did the same work but you expended more power.

Explanation:              

<em>Work done</em> by an object is calculated by force applied multiplied by the distance.

  W=F*d

From the figure given below let us calculate force applied bith you and yopur friend.

Let us take the stairs in positive x direction,

Work done by you W₁ ,

The force applied Fₓ = F - mgsinθ =maₓ

here aₓ = 0, because both of you move with constant speed

F - mgsinθ = 0

F=  mgsinθ

The work done by you on the suitcase is

W = F L cos0°  ,    where L is he length of the staircase.

W = FL = mgsinθL ,  by substituting value of F

Work done by you is W₁ = mgLsinθ

Similarly work done by your friend is W₂ = mgLsinθ.

Because both of you carry suitcase of same weight and in staircase is in same angle the force applied is same .

Therefore <em>work done by both of you is same</em> . Both of you did equal work.

The power , is defined as amount of energy converted or transfered per second or rate at which work is done .

P =\frac{W}{t} =\frac{FL}{t}

Power spend by you P₁ = mgLsinθ/t

P₁ = 15*9.8*Lsinθ/30

P₁ = 4.9L sinθ  eqn 1

Power spend by your friend is P₂ = mgLsinθ/t

P₂ =15*9.8*Lsinθ/60

P₂ = 2.45Lsinθ    eqn 2

Dividing eqn 1 and eqn 2

P₁ = 2P₂

You have spend more power than your friend .

Hence Both of you did equal work but you spend more power.

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3 years ago
Which advantage of stored digital data could be a disadvantage in some
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Answer:B- All types of information can be pressed on to receivers of the data.

Explanation: hope this helps

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What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s?
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Ke=1/2mv^2
Ke= 0.5*30*20^2
Ke= 6000joules
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The cross-section of a pipe has an area of 2.0 cm2. Calculate the flow rate (in grams per second) of a liquid with p=1.0 g/cm3 t
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<span> flow rate = velocity of fluid x area of cross section x density 
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the risk of injury in a car accident is much greater if occupants do not wear a seat belt. Which of Newton's laws explains why t
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Newton's first law of motion
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