Will a battery with magnesium (Mg) as the anode and aluminum (Al) work to power a flashlight? Why or why not?

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

Answer: The metric system is a system of measurement that uses the meter, liter, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively. To measure smaller or larger quantities, we use units derived from the metric units.

Answer:

240N

F=ma, a = vf-vi / t

Explanation:

Answer:

There could be several possible reasons for a small gap between rails on a railway track, such as:

1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.

2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.

3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.

4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.

These are some of the possible reasons for a small gap between the rails on a railway track.

Answer:

The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.

Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.

Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.

Answer:

2. c

3. a

Explanation:

for answer 3 kenetic energy does not change and will stay the same. and for answer 2 after the second bounce it is already slower than both beginning and end. the beginning is just when its speeding up so its bounce one. which is c.

Answer:

the answer for qes 2 is c

the answer for qes 3 is a

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s

kinetic energy is given as

2) when speed is 3 m/s

kinetic energy is given as

3) when speed is 4 m/s

kinetic energy is given as

4) when speed is 5 m/s

kinetic energy is given as

5) when speed is 6 m/s

kinetic energy is given as

The gas laws have been applied to find the missing values;

1) 1.72 atm

2) 880 K

3) 1.13 atm

4) 5.9 L

5)  167.4 kPa

The Charles, Boyle's and Gay - Lussac's laws are applied here.

We know that;

From Gay Lussa law

\(P_{1}\)/\(T_{1}\) = \(P_{2}\)/\(T_{2}\)

\(P_{2}\) = 1.21 * 450/315

\(P_{2}\) = 1.72 atm

From Charles's law

\(V_{1}\)/\(T_{1}\) = \(V_{2}\)/\(T_{2}\)

\(T_{2}\)    = 4.8 * 495/2.7

\(T_{2}\)= 880 k

From Boyle's law

\(P_{1}\)\(V_{1}\)= \(P_{2}\)\(V_{2}\)

\(P_{2}\) = 7.14 * 1.9/12.0

\(P_{2}\) = 1.13 atm

From the general gas law;

\(V_{2}\) = 2.1 * 6.9 * 291/1.8 * 400

\(V_{2}\) = 4216.59/720

\(V_{2}\) = 5.9 L

From Gay Lussa law

\(P_{1}\)/\(T_{1}\) = \(P_{2}\)/\(T_{2}\)

\(P_{2}\)  = 315.2 * 145/273

= 167.4 kPa

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SOLUTION :

Law of conservation of Mass States that "Mass is neither created, nor destroyed".

→ Like Mass of Reactants = Mass of products.

REACTANTS :

The total mass of reactants:

= 5.3 + 6

= 11.3g

The total mass of products is :

= 2.2 + 0.9 + 8.2

= 3.1 + 8.2

= 11.3g

Hence the, Mass of Reactants = Mass of products

∴ The given reaction is in agreement with the law of conservation.

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Answer:C a clear sky

Explanation: there are no clouds to let out more air pressure. So there could be more bubbles of air pressure in the sky or “patches”

Because it is easier for metals to shed their valence electrons and form cations for a stable configuration, they have comparatively few chances of acquiring electrons.

The metals usually complete their octet in each reaction. The outermost electron shell often contains more electrons in metals. Metal atoms lose electrons when they interact with other non-metals because the energy of an electron in its outermost shell is very weak.

Metals often have low ionization energy because their electrons are positive in nature. Metals lose their electrons and trade them with non-metals to achieve a stable configuration.

To know more about electrons in metals elements,

https://brainly.com/question/1511116

Answer:

metals typically have relatively low ionization energies

Explanation:

Answer:

A mutation is in the center of the second part of the sequence (G).

Explanation:

Adenine pairs with thymine (and uracil), and guanmine pairs with cytosine. The second part of the sequence should be TCCTCCT.

Answer:

1.porque la cáscara del huevo es semipermeable, es decir, hay sustancias que pueden pasar al interior del huevo o salir de él. En esta ocasión parte del líquido ha entrado dentro del huevo

2.Los huevos se encogen en el jarabe de maíz debido a la ósmosis. La ósmosis es el proceso por el cual el agua entra y sale de las células a través de una membrana semipermeable.

El agua entra y sale de los tejidos a través de la ósmosis. Durante la ósmosis, el agua entra o sale de la célula a través de la membrana semipermeable de la célula. Esta membrana es esencial para permitir que los materiales vitales entren en las células sin permitir el paso de materiales no deseados o peligrosos. Durante la ósmosis

Explanation:

dame coronita plis me ayudas mucho

1.because the eggshell is semi-permeable, that is, there are substances that can pass into the egg or leave it. This time part of the liquid has entered the egg

2.Eggs shrink in corn syrup due to osmosis. Osmosis is the process by which water enters and leaves cells through a semi-permeable membrane.

Water enters and leaves tissues through osmosis. During osmosis, water enters or leaves the cell through the semi-permeable membrane of the cell. This membrane is essential to allow vital materials to enter cells without allowing unwanted or hazardous materials to pass through. During osmosis

Explanation:

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Answer:

C

Explanation:

Answer:

A,C,D

Explanation:

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

Answer:

The sun rays reaching the earth heat up its surface .

The heat absorbed by the earth is released in the night therefore the cloudy nights are hot.

Explanation:

Answer:

Our Sun's rays heat up Earth's surface.

Answer:

hope it helps ❤

Explanation:

Methane only has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.

Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

Answer:

Explanation:

Thomas is incorrect because acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. An object is accelerating if it is changing its velocity.

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:

Berryllium

Explanation:

its the most reactive (mark brainliest plz)

Berryllium would react faster with oxygen.

information regarding oxygen:

Find out more information about the oxygen here:

https://brainly.com/question/1506082?referrer=searchResults

Answer:

Explanation:

The cell cycle refers to the cell's lifecycle or the period of cellular growth and DNA replication. Mitosis represents the final step in the cell cycle—mitosis produces two identical daughter cells.