You are given two solid materials one that is organic and one that is not organic. Describe three tests you could perform to help you decide which is which.

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Answer 1

Answer: 1- which one expires faster.
2- wbich one has more health benefits.
3- and which one tastes better which is the organic.

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1 Coulomb of charge = 6.25*1018 . How?

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I don't understand the question.
It seems the same as asking "How is 1 mile 5,280 feet ?"

The amount of charge on every electron and every proton is the same. For human
people, it's a very small amount of charge, so we work with a larger unit, called the
Coulomb. That's the amount of charge on 6.25 x 10¹⁸ electrons.

In a wire, when that many electrons, carrying that amount of charge, pass by
some point every second, we call the current in the wire 1 Ampere.

This is heat or electrical transfer by contact.

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Answer:

The correct answer for this problem is conduction.

Explanation:

I just did the test and conduction was the correct answe.

Alternative between running snd walking

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this would have to be jogging

Recall that the height of an object t seconds after it begins moving when gravity is the only force acting on the object is given. h(t)=-16x^2 + v0t + h0. h(t) is given in feet. v0 = initial velocity of object in ft/sec. ho= initial height of object in feet. If the feather is dropped from the top of the bridge 90 feet above a river, how long does it take the feather to reach the water?

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That's pretty easy, have a look :

$h(t)=−16x2=v0t+h0$
$v0=0 ft/sec$
$h0=90 ft$

The only thing you need to do is to find t and the problem is solved.

Answer:

Time taken, t = 2.37 seconds

Explanation:

It is given that,

Height of an object at time t is given by :

$h(t)=-16t^2+v_0t+h_0$

Where

v₀ is initial velocity of object

h₀ is initial height of the object

The feather is dropped from the top of the bridge 90 feet above a river. we have to find the time taken by the feather to reach the water.

At the surface of water, h(t) = 0 and v₀t = 0

So, $0=-16t^2+0+90$

t = 2.37 seconds

The feather will take 2.37 seconds to reach the water surface.

The kinetic energy of the diver is 5040 J. The speed of the diver is 12 m/s. Calculate the mass of the diver.What's the mass of the diver?

Answers

Answer:

70 kg

Explanation:

We know that,

Kinetic energy = 1/2 mv²

Where m is mass and v is velocity or speed.

Putting the required values,

5040 = 1/2 × m ( 12 × 12)
5040 × 2 = m × 144
10080 = m × 144

divide both side by 144

m = 70 kg

So the mass of the diver is 70 kg respectively.

a bullet is fired upwards with the initial velocity of 250m/s. determine the time taken to reach the maximum height

Answers

the final velocity is 0 and the acceleration is gravity. Vf=Vi+at because gravity opposes the motion it will be -g
0=250-gt
gt=250 ....g=10
t=25sec

using:

v = u - gt.

Where v = final velocity in m/s, u = initial velocity in m/s, g = acceleration due to gravity in m/s², t = time in s.

At maximum height the final velocity v = 0 m/s. u = 250 m/s

v = u - gt.

0 = u - gt.

gt = u

t = u / g g ≈ 9.8 m/s²

t ≈ 250 / 9.8

t ≈ 25.51

Time to reach maximum height is ≈ 25.51 seconds.

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A signal from the nervous system that is sent from the brain to the hand would follow a different pathway than a signal sent from the hand to the brain.

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Matter is either a _________________ or a mixture.