It is best to say that electric motors require _______ to work. a. a continuous current b. a galvonometer c. a generator d. energy

1) Well, you need to logically think about which of the pecan trees would be better. Tree 3 may have more clusters but they taste bitter so this is out of the option. So Tree 4 and Tree 1 would be best because they both have rich and buttery tastes and they both have a lot of clusters.

2) Not quite sure about this one, sorry :(

Answer:

1. Pecan 1 and Pecan 4

2. Farmer can take pecan 1 and pecan 4 DNA then combine it to grow a new pecan that produce higher of nut cluster and have rich and buttery Flavored nut.

3. Selective Breeding

Answer:

praseodymium can conduct electricity as it is one of it's conductivities

The properties of all of these material vary from each other. Paper, cardboard and plastic are insulators and metals and conductors. Each of them has different physical properties.

The physical properties of a substance include properties which changes its physical structure, size, shape, phase etc. Solubility, conductivity, resistance etc. are also physical properties.

Here, paper, cupboard and plastic are insulators and they does not conduct electricity. Whereas, metals are very good conductors and they have wide range of applications in optoelectronic devices.

Each of these materials has different melting temperature and different uses. Their density also vary significantly. The paper is the less dense one here and metals are denser.

The applications of these materials are based on their physical properties.

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Answer:b

Explanation:

Sodium oxide has a high melting point because of the strength ofits bonds. Due to having strong bonds, they cannot be broken veryeasily. Magnesium chloride is ionic compound. There is a strong electrostatic force of attraction between 2 chloride atoms and 1 magnesium atom.

Because it retains its strength at very high temperatures. It is considered a refractory material with a melting point of 6500 degrees F. It is also very non-reactive with other materials that might be put into the furnace and is even used to make crucibles - containers used to melt other substances.

Answer:

The hammerhead sharks exhibit a viviparous mode of reproduction with females giving birth to live young. Like other sharks, fertilization is internal, with the male transferring sperm to the female through one of two intromittent organs called claspers. The developing embryos are at first sustained by a yolk sac.

Explanation: hope this helped

answer:

The first in the row is correct

Answer: D.

Explanation: Na= Sodium, H= Hydrogen, C= Carbon, O= Oxygen

Answer: hydrogen-carbonate.

Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.

I hope everyone finds this helpful

Answer:

physical  

Explanation:

Answer: The sections of a lab report can vary between scientific fields and course requirements, but they usually contain the purpose, methods, and findings of a lab experiment. Each section of a lab report has its own purpose. 1. Title: expresses the topic of your study 2. Abstract: summarizes your research aims, methods, results, and conclusions

Explanation:

Answer:

No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.

Answer:

The explosion of fireworks is an example of chemical change. During a chemical change, substances are changed into different substances. Another words, the composition of the substance changes.

Answer:

Releases Energy:

1) Respiration in cells
3) Activating a cold pack
3) Burning a candle

Absorbs energy:

4) Baking bread
5) Photosynthesis
6) Producing electric current

Answer: its 5ft tall and 12 inches

Explanation:

Answer:Trade winds blowing in a curved manner

Explanation:Because i like the answer

Answer:

Dissolving a solid in liquid, such as table salt in water, is a physical change.

Explanation: Its a physical change because only the state of the matter has changed

Answer: hydrolysis oxidation acidification

Explanation:

they break down, dissolve, or create new elements

Chemical weathering affects hillslope form by directly removing mass from hillslopes. The transformation of primary minerals to secondary minerals can also affect the hydrology, biota, and stability of hillslopes, which in turn influence sediment transport and landscape morphology. Erosion in evolving landscapes can modulate and be modulated by chemical weathering; for example, pulses of accelerated erosion can lower the residence time of hillslope materials, thereby increasing their chemical weathering rates, which in turn accelerate the incision signal.

Answer:

horse and cart ig lol

Explanation:

char

Answer:

here

volume of cube = l^3

=2cm^3

=8cm^3

now,

mass=(9.7÷1000)kg

=0.0097kg

volume=8cm^3÷100=0.08

we know that,

density=mass/volume

= (0.0097/0.08)kg/m^3

= 0.12125kg/m^3

Explanation:

the formula to calculate volume of cube is l^3 so here we find the volume of cube using this formula and then we convert gram into kilogram then convert cm into m then by applying the formula of density we find it density

A 2 cm cube made of acrylic has a mass of 9.7 g. The density of the acrylic is 0.12125 kg m3

Density is the mass of per unit volume.

\(Volume of cube = l^3\\=2cm^3\\=8cm^3\)

mass 9.7 kg, converted into kilograms = 0.0097kg

\(Volume \;= \dfrac{8cm^3}{100} = 0.08\)

Calculating the density

\(Density = \dfrac{mass}{volume} \\\\\dfrac{0.0097}{0.08} = 0.12125\;kg\;m^3\)

Thus, the density of the acrylic is 0.12125 kg m^3.

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Answer:

what is the experiment try d

Answer:

PLEASE HELP MEEEE (SAME QUES)

Explanation: