Which product forms from the synthesis reaction between barium (Ba) and
oxygen (O)?

Answer:

thermal energy

Explanation:

heat transfers into it causing it to physically change

Answer:

A pesar de las diferencias entre cada copo de nieve y las grandes familias de copos que existen, estos todavía tienen una base hexagonal. Esta estructura hexagonal se explica por la forma en que las moléculas de agua se unen para formar un cristal

Despite the differences between each snowflake and the large families of flakes that exist, they still have a hexagonal base. This hexagonal structure is explained by the way in which water molecules come together to form a crystal.

Explanation:

mn

Answer:

There should be a certain age limit Idon't know

Explanation:

Answer: Any sound cannot be heard through a glass bell jar because a vacuum is created in the jar and sound cannot travel without a medium like gases, solids or liquids

Answer:

the glass hids it and the vibration of the phone is the way you hear it

Answer:

The last option, 20 N and 2.04 kg

Explanation:

work = (force)(distance)

work = 120 joules

distance: 6 m

rearrange to find force:

120=(6)F

F= 120/6 = 20 Newtons.

Assuming its lifted from Earth's surface, the force of gravity will be 9.81 m/s^2. Let's find mass:

F=mg

m=F/g

m=(20)/(9.81)= 2.038 kg

Answer:

The impulse received by the ball from the floor during the bounce is approximately 1.11329438 m·kg/s

Explanation:

The given mass of the ball, m = 86 g = 0.089 kg

The height from which the ball is dropped, H = 2.87 m

The height to which the ball bounces, h = 1.28 m

Mathematically, we have;

Δp = F·Δt

Where;

Δp = The change in momentum = m·Δv

F = The applied force

Δt = The time of contact with the force

The velocity of the ball just before it touches the ground, v₁ = -√(2·g·H)

The velocity with which the ball leaves, v₂ = √(2·g·h)

The change in momentum, Δp = m·(v₂ - v₁)

∴ Δp = m·(√(2·g·h) - (-√(2·g·H))) = m·(√(2·g·h) +√(2·g·H) )

The impulse, Δp, received by the ball from the floor during the bounce is given as follows;

Δp = 0.089 kg × (√(2 × 9.8 m/s² × 1.28 m) + √(2 × 9.8 m/s² × 2.87 m)) ≈ 1.11329438 m·kg/s

The impulse received by the ball from the floor during the bounce, Δp ≈ 1.11329438 m·kg/s

Answer:

b

Explanation:

The statement which represents an endothermic reaction is using a heat pack on an injury.

An endothermic reaction is a type of chemical reaction that absorbs heat energy from the surroundings. In other words, in an endothermic reaction, energy is taken in from the environment as the reaction proceeds, resulting in a decrease in the temperature of the surroundings.

Endothermic reactions require an input of energy to occur, usually in the form of heat, light, or electricity. This energy is used to break the bonds between atoms or molecules in the reactants, and the products formed have higher potential energy than the reactants. The excess energy is absorbed from the surroundings to compensate for this increase in potential energy.

Examples of endothermic reactions include melting ice, evaporating water, and baking soda reacting with vinegar to produce carbon dioxide gas. These reactions require an input of energy to occur and absorb heat from the surroundings, resulting in a decrease in the temperature of the surrounding environment.

Here in this question,

Endothermic reactions absorb heat energy from the surroundings, meaning that they require energy input to proceed. In the case of using a heat pack on an injury, energy is required to activate the reaction that produces heat and provides warmth to the injured area. This process absorbs heat from the environment, making it an endothermic reaction.

In contrast, wood burning in a fire and TNT exploding are exothermic reactions because they release heat energy into the surroundings, which means that they produce heat as a byproduct. The splitting of a gas molecule is not an endothermic or exothermic reaction, but rather a chemical reaction that can be either endothermic or exothermic depending on the specific reaction and conditions involved.

Therefore, The correct answer is using a heat pack on an injury.

To find more on  Exo and Endo thermic  reaction​ click :

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Answer:

A) 450 B)3.5

Explanation:

Answer:231.756757

Explanation:

(4)(343/2.96(2)= 231.756757

Answer:

The answer is 231.757 trust

Explanation:

star

Answer:

oh I'm so sorry I can't answer your question it has been a long time since I learned that. so I totally forgot how to do this. sorry!

' A ' is the graph that shows it.

Answer: They know that while the cake is in the oven, a chemical change that involves energy occurs.

Explanation:

The total amount of energy stays the same, but it changes from one form to another. The correct option is D.

According to the rule of conservation of energy, energy can only be transformed from one form of energy to another and cannot be created or destroyed.

This indicates that unless energy is added from the outside, a system always has the same quantity of energy.

The law of conservation of energy, which is found in physics and chemistry, stipulates that the total energy of an isolated system stays constant over time.

Greg and Valerie want to make a cake. They prepare the oven and mix the cake mixture. They are aware that a chemical shift involving energy takes place while the cake is baking.

Energy shifts from one form to another, yet its overall amount remains constant.

Thus, the correct option is D.

For more details regarding law of conservation of energy, visit:

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A. The total amount of energy will either increase or decrease, depending on how much cake batter there is.

B. The total amount of energy increases because the oven gets very hot.

C. The total amount of energy decreases because it changes into matter.

D. The total amount of energy stays the same, but it changes from one form to another.

Answer:

Natural selection is a mechanism, or cause, of evolution.

Explanation:

Adaptations are physical or behavioral traits that make an organism better suited to its environment. Heritable variation comes from random mutations.

Answer:

24 Coulumbs

Explanation:

Given data

time= 1 minute= 6 seconds

P=2 W

R= 12 ohm

We know that

P= I^2R

P/R= I^2

2/12= I^2

I^2= 0.166

I= √0.166

I= 0.4 amps

We know also that

Q= It

substitute

Q= 0.4*60

Q= 24 Columbs

Hence the charge is 24 Coulumbs

Answer:

30C

Explanation:

its basically how the other guy did it but he worked it out with 2W instead of 3W so he got it wrong so its 30C and not 24C

The runner's total distance covered was 800 meters.  Her displacement (straight-line distance between start-point and end-point) was zero.

Her average speed = (distance)/(time) = 4.04 m/s

Her average velocity = (displacement) / (time) = zero (choice - c)

Answer:

La distancia entre los dos cuerpos es aproximadamente 1.269 milímetros.

Explanation:

Asumamos que ambos cuerpos son partículas, la fuerza de atracción ([tex]F[/tex]), en newtons, entre ambos cuerpos se define mediante la Ley de Newton de la Gravitación Universal, cuya ecuación es:

[tex]F = G \cdot \frac{m_{1}\cdot m_{2}}{r^{2}}[/tex] (1)

Donde:

[tex]G[/tex] - Constante de la gravitación universal, en metros cúbicos por kilogramo-segundo cuadrado.

[tex]m_{1}, m_{2}[/tex] - Masas de los cuerpos, en kilogramos.

[tex]r[/tex] - Distancia entre los cuerpos, en metros.

Si sabemos que [tex]G = 6.674\times 10^{-11}\,\frac{m^{3}}{kg\cdot s^{2}}[/tex], [tex]m_{1} = 0.48\,kg[/tex], [tex]m_{2} = 0.196\,kg[/tex] y [tex]F = 3.9\times 10^{-6}\,N[/tex], entonces la distancia entre los dos cuerpos es:

[tex]r = \sqrt{\frac{G\cdot m_{1}\cdot m_{2}}{F} }[/tex]

[tex]r \approx 1.269\times 10^{-3}\,m[/tex]

Es decir, la distancia entre los dos cuerpos es aproximadamente 1.269 milímetros.

Answer:

a = 5 m / s²   and    x = 562.5 m

Explanation:

Let's apply the kinematics relations

          v = v₀ + at

          v² = v₀² + 2a x

In this case, as the car stops, its final speed is zero (v = 0) and the acceleration must be opposite to the speed, that is, negative

           0 = v₀ - a t

           a = v₀ / t

let's calculate

           a = 75/15

           a = 5 m / s²

let's look for the distance

           0 = v₀² - 2a x

           x = v₀² / 2a

let's calculate

           x = [tex]\frac{75^2}{2 \ 5 }[/tex]

           x = 562.5 m

Answer: D

Explanation: I have my answers VS. Go0gle answers (go0gle answers are pics)

(A) Both have the same day length. Well, Venus doesn't havve the same amount of days. (I already know off the top of my head, but I still searched it up)

(B) Both rotate in the same direction. In school (before Virus) they would always show diagrams of the planets on the projector and Venus doesn't rotate

(C) Both have ample water. No. Venus doesn't have much water >_>

(D) Both have a solid inner core and a liquid outer core. Yesh. In my lessons (before), Venus has a solid inner core and liquid outer core.

Answer:

an infection, including bacterial and rabies infections.

broken animal teeth embedded in your wound.

foreign objects embedded in your wound.

possible nerve and blood vessel damage.

Answer:

a = 0.45 m/s²

Explanation:

The given question is ''Calculate the acceleration that produces a force of 40 N on a body with 88 kg of mass".

Given that,

Force, F = 40 N

Mass of the body, m = 88 kg

The net force acting on the body is given by :

F = ma

Where

a is the acceleration of the body

[tex]a=\dfrac{F}{m}\\\\a=\dfrac{40\ N}{88\ kg}\\\\a=0.45\ m/s^2[/tex]

So, the required acceleration is 0.45 m/s².

Answer:Its a Soild

Explanation:

Answer:

Hey mate...

Explanation:

This is ur answer...

A balloon sound effect is pop or bang....

hope it helps you,

Follow me

Answer:

Popping sound

Explanation:

It gives a pop sound when it blows off

Answer:

It is cold at saturn and far away

Explanation:

Answer:

dominant season is SUMMER

Explanation:

Latitude on the planet is the angle measurement from the so-called equator or midpoint of the Earth's sphere, therefore latitude values ​​can range from 0º to 90º.

Low latitude values, values ​​close to zero degrees, are very close to the central part of the planet, so when you plan to tilt in or orbit the Sun, this part is almost fixed, therefore the solar irradiation is very constant. throughout the year, consequently the dominant season is SUMMER

Answer:

2.4 ohms

Explanation:

From the question,

Applying ohm's law,

V = IR.................... Equation 1

Where V = Voltage of the car battery, I = current, R = resistance

Make R the subject of the equation

R = V/I.................. Equation 2

Given: V = 12 V, I = 5 amp.

Substitute these values into equation 2

R = 12/5

R = 2.4 ohms

Answer:

51°

Explanation:

Please see attached photo for explanation.

In the diagram, R is the resultant and θ is the angle of the displacement of the resultant.

The value of θ can be obtained as follow:

Angle θ =?

Opposite = 4.5 miles

Adjacent = 3.7 miles

Using Tan ratio:

Tan θ = Opposite / Adjacent

Tan θ = 4.5 / 3.7

Tan θ = 1.2162

Take the inverse of Tan

θ = Tan¯¹ 1.2162

θ ≈ 51°

Thus, the angle of the displacement of the resultant is 51°

Answer: the atmospheric pressure is generally expressed in terms of the height of the mercury column.at normal temperature and pressure, the barometric height is 760mm at sea level which is taken as one atmosphere. thus atmospheric pressure is also expressed in a unit atmosphere where 1 atm= 0.76m of hg. 9