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3 years ago

Why should fishing be more sustainable?

Physics

1 answer:

s344n2d4d5 [400]3 years ago

6 0

Answer:

Why Sustainable Fishing Is Important Sustainable fishing allows humans to continually fish in oceans and other bodies of water indefinitely for edible seafood. Overfishing can cause a negative domino effect in water-based ocean systems that is difficult to stop.

Explanation:

hit the heart :)

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At what distance is the electrostatic force between two protons equal to the weight of one?.

erik [133]

0.118 m is the distance between the two protons.

Mass of proton = 1.6726 × 10⁻²⁷ kg

Weight of proton= 1.6726 × 10⁻²⁷ x 9.81 N

= 1.6408 × 10⁻²⁶ N

Charge of proton = 1.602 × 10⁻²⁹ C

The force between two protons = kq²/r² where, K is a proportionality

constant, q is a charge of proton and

r is the distance between two protons.

= 9 × 10⁹ × (1.602×10⁻¹⁹)²/r²

To calculate distance :

Weight of proton= Force between protons

⇒ 1.6408 × 10⁻²⁶ N = 9 × 10⁹ × (1.602×10⁻¹⁹)²/r²

⇒ r = 0.118m

Therefore, 0.118 m is the distance between the two protons.

Learn more about electrostatic force here:

brainly.com/question/18108470

#SPJ4

8 0

2 years ago

A ball was dropped from a height of 10 feet. Each time it hits the ground, it bounces 4/5 of its previous height. Find the total

Shtirlitz [24]

Answer:

d = 90 ft

Explanation:

As we know that after each bounce it reaches to 4/5 times of initial height

so we can say

$h_2 = \frac{4}{5}h$

so the distance covered is given as

$d = h + 2(\frac{4}{5}h) + 2(\frac{4}{5})^2h + 2(\frac{4}{5})^3h........$

here we know that

h = 10 feet

$d = h + 2(\frac{4}{5}h)(1 + \frac{4}{5} + (\frac{4}{5})^2 + ...........)$

$d = 10 + 2(\frac{4}{5}(10))(\frac{1}{1 - \frac{4}{5}})$

$d = 90 ft$

8 0

3 years ago

A fan is to accelerate quiescent air to a velocity of 8 m/s at a rate of 9 m3 /s. determine the minimum power that must be suppl

ELEN [110]

Given:
ρ = 1.18 kg/m³, density of air
v = 8 m/s, flow velocity
Q = 9 m³/s, volumetric flow rate

The minimum power required (at 100% efficiency) is
$\frac{1}{2} (8 \, \frac{m}{s} )^{2}*(9 \, \frac{m^{3}}{s} )*(1.18 \, \frac{kg}{m^{3}}) = 339.84 \, W$

The actual power will be higher because 100% efficiency is not possible.

Answer: 339.8 W (nearest tenth)

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4 years ago

In an open circuit like the picture

Dmitry_Shevchenko [17]

C. The light bulb will be off
This is due to the reason that the wire doesn’t go back to the battery :)

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3 years ago

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If your mass is 100 kg on earth, what do you weigh on the moon?

galben [10]

You’d weight about 162 N

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3 years ago

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