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3 years ago

What is the main idea of quantum psychics?

1 answer:

6 0

Hello there,
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Quantum mechanics is the body of scientific laws that describe the wacky behavior of photons, electrons and the other particles that make up the universe.
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I hope I was able to help you. :)

[Mark Brainliest] - Correct Certified?

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A taxi

nignag [31]

That taxi will traveled 1500s by carrying the passenger.

3 0

2 years ago

A hammer is used to hit a nail into a block of wood. The hammer hits the nail with a speed of 8.0 m/s and then stops. The hammer

77julia77 [94]

800 Newtons

Explanation

The average force is the force exerted by a body moving at a defined rate of speed (velocity) for a defined period of time.

the average force is given by:

$F=ma$

and

$a=\frac{\Delta v}{\Delta t}$

$\begin{gathered} F_{average}=m\frac{\Delta v}{\Delta t} \\ where\text{ m is the mass of the objectt} \\ \Delta v\text{ is the change in velocity} \\ \Delta t=\text{ time} \end{gathered}$

Step 1

a) Let

$\begin{gathered} m=0.0015\text{ kg} \\ \Delta v=0.0015s \\ \Delta v=8\text{ }\frac{m}{s} \end{gathered}$

now, replace

$\begin{gathered} F=0.15\text{ kg}\frac{0-8\frac{m}{s}}{0.0015\text{ s}} \\ F=-800\text{ N} \end{gathered}$

the negative sign indicates the force is in the opposite way ( the force is exerted by the nail to the hammer), so the force is opposite to the direction of the movement

so, the answer is

800 Newtons

I hope this helps you

6 0

9 months ago

b) Si la distancia entre el punto A y el punto B es de 650 metros aproximadamente y la estudiante tarda 15 minutos (1200 segundo

lina2011 [118]

Answer: A
explanation:

6 0

2 years ago

(1) A Newton is 1 kgm/s2 . Is this a fundamental unit or a derived unit?

Mrac [35]

A Newton is a derived unit.
Hope that helped:)

8 0

2 years ago

What is the concentration of H+ ions at a pH = 2? mol/L What is the concentration of OH– ions at a pH = 2? mol/L What is the rat

densk [106]

Answer:

In Step 5, you will calculate H+/OH– ratios for more extreme pH solutions. Find the concentration of H+ ions to OH– ions listed in Table B of your Student Guide for a solution at a pH = 2. Then divide the H+ concentration by the OH– concentration. Record these concentrations and ratio in Table C.

What is the concentration of H+ ions at a pH = 2?

0.01 mol/L

What is the concentration of OH– ions at a pH = 2?

0.000000000001 mol/L

What is the ratio of H+ ions to OH– ions at a pH = 2?

10,000,000,000 : 1

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I LITERALLY spent 40 MINUTES trying to figure out this question, so please, use my VERY CORRECT answers!

I hope this helps!

4 0

2 years ago