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Ugo [173]
3 years ago
9

Does anyone know? Please help! Thank you!

Physics
2 answers:
Vedmedyk [2.9K]3 years ago
7 0

B density will increase

daser333 [38]3 years ago
6 0
B it increased because it put more pressure and volume that makes it more
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Mike has a mass of 97 kg. He jumps out of a perfectly good airplane that is 2000 m above the ground. After he falls 1000 m, when
Ne4ueva [31]

Answer:

a)  fr = 224.3 N , b)   fr = 224.3 N , c)   v = 198.0  m/s

Explanation:

a) For this exercise let's start by calculating the acceleration in the fall

             v² = v₀² - 2 a (y-y₀)

When it jumps the initial vertical speed is zero

             a = -v² / 2 (y-y₀)

             a = -68 2/2 (1000-2000)

             a = 2,312 m / s²

Let's use the second net law to enter the average friction force

            fr = m a

            fr = 97 2,312

            fr = 224.3 N

b) let's look for acceleration

            v² = v₀² - 2 a y

            a = (v² –v₀²) / 2 (y-y₀)

            a = (4² - 68²) / 2 (0-1000)

            a = 2,304 m / s²

            fr = m a

            fr = 97 2,304

            fr = 223.5 N

c) the speed of the wallet is searched with kinematics

           v² = v₀² - 2 g (y-y₀)

           v = √ (0-2 9.8 (0-2000))

           v = 198.0  m/s

4 0
3 years ago
What element from the periodic table produces blue color in fireworks
sattari [20]
The answer is going to be element #29 Copper makes blue 
Red:#38 
Green:#56
Pink:#3
Yellow:#11
Gold:#20
Hopes This Helps 
4 0
3 years ago
Read 2 more answers
The valency of oxygen is 2​
iren2701 [21]

Answer:

Yes the valency of oxygen is 2

5 0
3 years ago
What sport was invented to keep athleates warm in the winter
tankabanditka [31]

Answer:

Basketball

Explanation:

Basketball was invented to keep athletes warm in the winter.

5 0
3 years ago
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The water level in a tank is 20 m above the ground. a hose is connected to the bottom of the tank, and the nozzle at the end of
Damm [24]

Answer:

P_(pump) = 98,000 Pa

Explanation:

We are given;

h2 = 30m

h1 = 20m

Density; ρ = 1000 kg/m³

First of all, we know that the sum of the pressures in the tank and the pump is equal to that of the Nozzle,

Thus, it can be expressed as;

P_(tank)+ P_(pump) = P_(nozzle)

Now, the pressure would be given by;

P = ρgh

So,

ρgh_1 + P_(pump) = ρgh_2

Thus,

P_(pump) = ρg(h_2 - h_1)

Plugging in the relevant values to obtain;

P_(pump) = 1000•9.8(30 - 20)

P_(pump) = 98,000 Pa

5 0
3 years ago
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