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Answers

Answer 1

Answer:
For the first page:

1) Transverse wave
2) B 2 represents the wavelength
3) D 4 represents amplitude
4) C decreased frequency
5) C wave frequency

Second page:

6) C Longitudinal wave
10) Frequency and wavelength are related. If freqeuncy is higher, wavelength is lower, if frequency is lower, wavelength is higher.

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Two solutions are added together and the new solution becomes hot. This tells you that
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Read the following selection from the section "What Is Intubation?"Having a tube down your throat isn't exactly pleasant because it affects a patient's ability to talkor eat. But it's important for getting the right amount of air into the lungs.Which answer choice BEST supports the idea that intubation is a necessary part of ventilator treatment?(A) But when the lungs fill up with fluid or become highly inflamed, the lungs can't expand enough, Lutchensays.(B) This actively pushes air into the lungs and can keep the levels of oxygen and carbon dioxide in theblood close to normal.(C) If the ventilator simply blew into a person's mouth, the air might expand their cheeks or leak out of theirnoes instead of going into the lungs, he says.(D) When the lungs are damaged, the millions of balloons take in oxygen and release carbon dioxidedifferently than when they are healthy, he says.
Why does the dilution equation, M 1 V 1 = M 2 V 2, work?a) The dilution equation works because the mass remains the same.b) The dilution equation works because the molarity remains the same.c) The dilution equation works because the volume remains the same.d) The dilution equation works because the number of moles remains the same.
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Which of the following does a simple circuit require?A. an energy source, a resistor, and a capacitor
B. a load, a conductor, and a resistor
C. a load, a resistor, and a capacitor
D. an energy source, a load, and a conductor

Answers

Ln h ch hc kh ñm ln oj

Answer:

I think its a i dont know but ya A

Explanation:

How can a neutral atom become a positively-charged particle?OA. It could lose protons.
B. It could lose electrons.
C.
It could gain neutrons.
D.
It could gain ions.

Answers

Answer:

A neutral atom can become positively charged by loosing electrons

Explanation:

this is because the number of protons are the same as the number of electrons and so by loosing electrons there are now more protons and so they become positively charged

Answer:

Explanation:

losing electrons,the atom becomes a cation ,,in other words becomes positively charged

A student viewing a cell with a microscope observes a cell wall a cell wall a cell membrane and a nucleus the presence of these structures indicates that the students is looking at a cell fram a

Answers

He is looking at a plant cell or a fungal cell. At the very least, it's eukaryotic, as some of them have these structures. An animal cell does not have a cell wall.

Magnetite, Fe3O4, is a ferrimagnetic, rather than a ferromagnetic material that contains different iron isotopes. How is it different from ferromagnetic minerals? A) It has opposing magnetic moments.
B) It can be spontaneously magnetized.
C) Its magnetization is temperature dependent.
D) The electrons in the iron spin in the same direction.

Answers

Answer:

Option A

Explanation:

Ferromagnetic materials have the property to be attracted to magnets while ferrimagnetic material is the magnetic property of materials having atomic moments aligned in opposite directions. In ferrimagnetic material as the magnetic moments are aligned in opposite direction, they cancel out the magnetic field.

Answer: A. It has opposing magnetic moments.

Explanation:

Magnetite , Fe3O4 is Ferrimagnetic and quite different from Ferromagnetic minerals because it's magnetic moments are aligned in opposite directions.

On the galapagos islands, Darwin studied many creatures, including finches. Explain what he observed and how it relates to nature selection.

Answers

Darwin observed the beaks of the birds and how the different beaks helped the birds to eat different types of seeds.

This relates to natural selection because certain finches with say a smaller shorter beak would be able to eat only smaller seeds and fruits as to where a finch with a longer larger beak could eat larger bigger seeds and fruits.

Hope this helped! Have a great day!

A race car travels on a circular track at an average rate of 125 mi/h. The radius of the track is 0.320 miles. What is the centripetal acceleration of the car?

Answers

Answer;

= 48,828.125 mi/hr²

Explanation and solution;

Centripetal acceleration is the rate of change of angular velocity. Centripetal acceleration occurs towards the center of the circular path along the radius of the circular path.

Centripetal acceleration is given by; V²/r ;

V = 125 mi/h and r = 0.320 miles

Thus; centripetal acceleration = 125²/0.320

=15625/0.320

= 48,828.125 mi/hr²

The centripetal acceleration is obtained from the quotient of the square of velocity and the radius. Hence, a= $( v^(2) )/(r)$ . Substituting the give, v=125 mi/h and r=0.320 mi, the answer is equal to 48,828.125 mi/ $hr^(2)$ .