The maps above show a front as it moves east across the United States. Which of these describes the weather change that can be expected for Amarillo, Texas?
A. The cold front will bring cooler temperatures and snow because the cold front is producing large amounts of energy and snow moving southeast.
B. The warm front will bring warmer temperatures with hot air for several days because it pushes the cold air out of the way.
C. The warm front will bring warmer temperatures with light rain for a few days because the warm air rises and cools producing rain.
D. The cold front will bring cooler temperatures with thunderstorms and rain, which causes the moisture in the warm air to condense and release large amounts of energy.
Answer:
D
Explanation:
I need help on 6 PLEASE!!
Answer:
A) 1 and 2
Explanation:
How is energy converted in a hydroelectric plant?
The potential energy of water is converted to electrical energy when water flows past a generator.
The kinetic energy of water turns turbines; the mechanical energy of the turbines turns the generator, which produces electrical energy.
The kinetic energy of water is converted to electrical energy when water flows down the dam's channel and into the transformer.
The potential energy of water turns the generator's turbines, which results in the production of electrical energy.
Answer:
Energy is converted in a hydroelectric plant as follows;
The kinetic energy of water turns turbines; the mechanical energy of the turbines turns the generator, which produces electrical energy
Explanation:
The water in an hydroelectric plant is given potential energy by building an artificial dam to raise the height of the water above the turbine
The high potential energy of the water is converted to kinetic energy which provides the power that turns the turbine transforming the kinetic energy of the water into rotational kinetic energy of the turbine by conservation of mechanical energy;
The shaft connected between the turbine and the generator, turns the generator by the mechanical energy of the turbine and as the generator turns in a magnetic field, electricity is produced by magnetic induction according to Faraday's law.
Cecilia is combing her hair. She notices that her hair and the comb have developed an electric charge. What will happen when she holds the comb near a small, uncharged object?
Answer:
The object will become statically charged
Explanation:
How many kernel electrons in Ne?
Answer:
I am pretty sure it has 10 kernel electrons!?!?!?
Hope this helps!!!
Have a great day!!! :)
How many CARBON atoms are in this chemical formula?
(CH3)2CH(CH2)2Br
Answer:
There are 4 carbon atoms present.
Explanation:
answer this question pleas
Answer:nope
Explanation:
Just no
First law of Thermodynamics
The first law of Thermodynamics usually applies to situations where?
A : Thermal Energy is converted to Mechanical Energy
B : Chemical Energy is converted to electrical energy
C : Light energy is converted to sound Energy
D : Nuclear energy is converted to sound energy
Answer:
Thermal energy is taken from heat sink in higher temperature. A thermal power machine does mechanical energy using part of the heat.
Part of heat taken are given in cold reservoir in lower temperature
Explanation:
help help pleaseeeee
What percent of the moon is visible in the last quarter moon phase shown? A) 0% B) 25% C) 50% D) 100%
Answer:
As you can see from the picture, about half the moon is visible.
Half = 1/2 = 50%
So, C is the correct answer.
Let me know if this helps!
Fifty percent of the moon is visible in the last quarter moon phase shown in the image.
What is moon?The Moon is Earth's only natural satellite. It is the fifth largest satellite in the Solar System and the largest and most massive relative to its parent planet,with a diameter about one-quarter that of Earth (comparable to the width of Australia).
The Moon is a planetary-mass object with a differentiated rocky body, making it a satellite planet under the geophysical definitions of the term and larger than all known dwarf planets of the Solar System. It lacks any significant atmosphere, hydrosphere, or magnetic field. Its surface gravity is about one-sixth of Earth's at 0.1654 g, with Jupiter's moon Io being the only satellite in the Solar System known to have a higher surface gravity and density.
The Moon orbits Earth at an average distance of 384,400 km (238,900 mi), or about 30 times Earth's diameter. Its gravitational influence is the main driver of Earth's tides and very slowly lengthens Earth's day. The Moon's orbit around Earth has a sidereal period of 27.3 days.
Learn more about moon,here:
https://brainly.com/question/13538936
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Which statement about covalent bonds and electrons is true?
O A. All covalent bonds are the same.
B. The atom with more electronegativity takes less than its share of
the electrons.
C. Electrons in covalent bonds are always shared equally,
D. If an atom gains an electron, it becomes more negative.
Answer:
D
Explanation:
electrons have a negative charge. gaining electrons increases the negative charge.
SCIENCE Which best describes a difference between single-celled organisms and multicellular organisms?
A.
Single-celled organisms are simple, while multicellular organisms are complex.
B.
Single-celled organisms have many functions, while multicellular organisms have one function.
C.
Single-celled organisms can live without water, while multicellular organisms cannot live without water.
D.
Single-celled organisms can only be found in one specific environment, while multicellular organisms can be found anywhere on Earth.
Answer:
A.
Single-celled organisms are simple, while multicellular organisms are complex.
predict how the surface of a sand dune would change if a river began flowing through the area over the course of 10,000 years. Write your explanation in the space
below.
Answer:
the sand dune would become flattened and eventually turn into sedementary rock
What is the molarity of a solution when 285 grams of HCl are dissolved in 0.350L of solution?
Answer: 22.33 M
Explanation:
molarity = moles of solute/liters of solution or [tex]M=\frac{mol}{L}[/tex]
first we have to find our moles of solute (mol), which you can find by dividing the mass of solute by molar mass of solute
mass of solute: 285 g
molar mass of solute: 36.46 g/mol
let's plug it in:
[tex]\frac{285g}{36.46 g/mol} = 7.817 mol[/tex]
next, we plug it into our original equation:
[tex]\frac{7.817 mol}{0.350 L} = 22.33 M[/tex]
how many electrons does Helium need to have a full outer shell
Answer:
two electrons is the answer.
What causes earthquakes? Be sure to use the words: Core Mantle Conduction Convection Density
Answer:
Explanation:
Earthquakes are normally caused by underground rock breaking along a fault line. The seismic waves that cause the earth to shake are caused by this sudden release of energy. The plates or blocks of rock begin to move during and after the earthquake, and they continue to move until they become trapped again. As fluid near the center heats up, convection currents develop within the Earth's mantle. Particles pass more quickly as the core heats the bottom layer of mantle material, lowering its density and allowing it to rise. The convection current is started by the growing material.
so guys, on tt i posted a video of me dancing and doing tricks, and someone said its from yt. like no? I gave proof two times and I cant rn bc im in school ?? what should i do dont rpeort pls i need help
Just ignore them you dont need to send salty ppl proof of anything
Compare the life cycles of a flowering and a conifer non-flowering plant.
Answer:
The main difference between flowering and nonflowering plants is their method of reproduction. Flowering plants rely on pollination for reproduction, where as nonflowering plants rely on dispersion to continue their life cycle.
Please help me with number 4 and 5 please
I need help with finding the Concentration of HCL (Ma)
the other things I have right now are
Vb = 10ml
Va = 10ml
Mb = 0.25m
Answer:
0.35 M
Explanation:
HCl + NaOH --> NaCl + H2O
Since the ratio HCl : NaOH is 1:1, you can apply the formula:
Ma x Va = Mb x Vb
Vb = 14 ml (based on the table)
Va = 10 ml
Mb = 0.25 M
Ma = (Mb x Vb)/Ma = (14 x 0.25)/ 10 = 0.35 M
A sample of a gas at 25°C has a volume of 150 mL when its pressure is 0.947 atm. What will the temperature of the gas be at a pressure of
0.987 atm and the volume changes to 144mL?
Be sure to show all of your work, define variables, show equation and substitute variables. Report you answer in Celcius.
Answer: The temperature of the gas at a pressure of 0.987 atm and volume of 144mL is [tex]25.16^0C[/tex]
Explanation:
The combined gas equation is,
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
where,
[tex]P_1[/tex] = initial pressure of gas = 0.947 atm
[tex]P_2[/tex] = final pressure of gas = 0.987 atm
[tex]V_1[/tex] = initial volume of gas = 150 ml
[tex]V_2[/tex] = final volume of gas = 144 ml
[tex]T_1[/tex] = initial temperature of gas = [tex]25^0C=(25+273.15)K=298.15K[/tex]
[tex]T_2[/tex] = final temperature of gas = ?
Now put all the given values in the above equation, we get:
[tex]\frac{0.947\times 150}{298.15}=\frac{0.987\times 144}{T_2}[/tex]
[tex]T_2=298.31K=(298.31-273.15)^0C=25.16^0C[/tex]
The temperature of the gas at a pressure of 0.987 atm and volume of 144mL is [tex]25.16^0C[/tex]
El trabajo realizado cuando se comprime un gas en un cilindro, como el que se muestra en la siguiente figura, es de 462 J. Durante este proceso hay transferencia de calor de 128 J del gas hacia los alrededores. Calcule el cambio de energía para este proceso.
Answer:
334 J
Explanation:
Cuando se comprime un gas, el trabajo se realiza en el gas, por lo que el trabajo realizado es positivo.
El sistema pierde calor, por lo que el calor es negativo.
De la primera ley de la termodinámica;
E = w + q
Dónde;
w = trabajo realizado
q = calor
E = 462 J - 128 J
E = 334 J
Which organelle allows plants to make their own food?
A: Chloroplast
B: Vacuole
C: Cell wall
D:
Cell membrane
Help me ASAP
Answer:
chloroplast is the correct answer
How many moles of H20 are produced by 4.8 moles of O2?
2H2 +O2 -----> 2H20
12 moles H
2
O
Explanation:
Your tools of choice for stoichiometry problems will always be the mole ratios that exist between the chemical species that take part in the reaction.
As you know, the stoichiometric coefficients attributed to each compound in the balanced chemical equation can be thought of as moles of reactants needed or moles of products formed in the reaction.
In your case, the balanced chemical equation for this synthesis reaction looks like this
2
H
2(g]
+
O
2(g]
→
2
H
2
O
(l]]
Notice that the reaction requires
2
moles of hydrogen gas and
1
mole of oxygen gas to produce
2
moles of water.
This tells you that the reaction produces twice as many moles of water as you have moles of oxygen gas that take part in the reaction.
You know that your reaction uses
6.0
moles of oxygen. Assuming that hydrogen gas is not a limiting reagent, you can say that the reaction will produce
6.0
moles O
2
⋅
2
moles H
2
O
1
moles O
2
=
12 moles H
2
O
hope this helps
o(*°▽°*)o
The table shows the speed of sound in four substances.
Answer:
15 degree's
Explanation:
it is when sound travels at its lowest
A stone has a mass of 112.5g. When the stone is totally immersed in a measuring cylinder containing water the displaced water moves from 50cm3 to 95cm^3. Find the density of the stone.
Answer:
Mass of the stone=112.5g
Volume of stone=95cm3-50cm3=45cm3
Explanation:
Which temperature scale is most commonly used out side of the United States?
A. Thomson
B. Fahrenheit
C. Celsius
D. Kelvin
When an atom of calcium (Ca) forms an ion by losing two electrons, what is the ion’s type and charge?
cation, 2+
anion, 2−
cation, 2−
anion, 2+
Answer: it would be cation, 2+
Explanation: electrons are negatively charged by 1. So if you get rid of 2 electrons it would be positive and cation is used to represent positive ions.
The electrical charge of the calcium ion is +2.
1. If I add together water and an effervescent tablet, will
the total mass before mixing be less than, equal to, or
greater than the mass after mixing?
A student makes a cross-section clay model to represent the internal structure of a volcano that leads to the formation of two rocks (X and Y). The student records the processes that
affect the type of rock that is formed in a table,
volcano
aboveground
underground
K
Process
1
2
3
Details
rate of cooling of the rock
composition of the rock
pressure exerted on the rock
Which process(es) cause(s) the rock formed at location X to be different from the rock formed at location Y?
1 only
2 only
• 1 and 3
Activate Windows
Go to Settings to activate Windows.
2 and 3
Tas PM
CAnswer:
Explanation: