What does hydropower rely on to create energy? A. heat from Earth's interior B. energy from the sun C. biomass D. flowing water

Answer:

a) The kinetic energy would increase. The molecules would move faster.

Given parameters

Weight of the box = 120N

Area of the box = 12cm^2

Unknown

Pressure of the box on the floor = ?

Solution

Pressure is the fore exerted by a body per uint area

Pressure = force/area

We need to convert the area into m^2 from cm^2

10000cm^2 = 1m^2

12cm^2 = 12/1000 = 0.0012m^2

Pressure = 120/0.0012 = 100000N/m^2

The pressure exerted on the floor is the force by bottom area. Hence, for a force of 120 N within an area of 12 cm² is 10 Pa.

Pressure is defined as the amount of force per unit area exerted on a surface. It is a measure of the intensity of a force over a given area.

The formula for pressure is:

Pressure = Force / Area

Pressure can be expressed in many different units, including pascals (Pa), pounds per square inch (psi), atmospheres (atm), and millimeters of mercury (mmHg). In general, the greater the force applied over a smaller area, the greater the pressure.

Given the force by weight = 120 N

area = 12 cm²

pressure  = 120 N/12 cm² = 10 Pa.

Therefore, the pressure exerted on the floor is 10 Pa.

Find more on pressure:

https://brainly.com/question/29341536

#SPJ2

Answer:

Explanation:

Leaves changing color is a chemical change because it involves a transformation of the chemical composition of the pigments within the leaves. During this process, the green pigment chlorophyll breaks down, revealing other pigments such as carotenoids (which produce yellow, orange, and brown colors) and anthocyanins (which produce red and purple colors). These pigments undergo chemical reactions that change their molecular structures, resulting in new colors.

In a physical change, the substance itself remains the same, but its physical properties may change, such as its shape, size, or state (solid, liquid, gas). However, in the case of leaves changing color, the chemical composition of the pigments is altered, resulting in a new substance with different properties. Therefore, this process is considered a chemical change.

Answer:

Why would leaves changing color be a chemical change and not a physical change?

Well, a chemical change is when a new substance IS formed and a physical change is a type of change in which a new substance is NOT formed. So leaves changing color would be a chemical change because they involve chemical reactions to occur.

Explanation:

You're welcome

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

Answer:

A wave e transports energy without transporting matter

Answer:

the answer is A. a wave transpory energy without transporting matter

Answer:

C: Radiation. Arrow x shows radiation. I hope this helps u! If it's wrong, please let me know!!

Answer:

+6.

Explanation:

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

Answer: See below

Explanation:

The general formula for volume is V = area * height

1) Volume of a cylinder

2) Volume of a sphere

3) Volume of a cube/rectangular prism

4) Volume of a cone

Come on hecker, you should heck the answers

Answer:

i need help go to my question from this brainly.com/question/25995862

Explanation:

Answer:

Explanation:

I’m pretty sure that stories differ because they are not proven and can be easily manipulated. Scientific explanations are proven and are probably fact.

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:

one atom, one atom.

Explanation:

Sodium chloride is made from one sodium atom and one chlorine atom.

Sodium has a charge of +1,  Chlorine has a charge of -1. These cancel each other out leaving only one atom for both sodium and chlorine.

The  statement which best explains an interaction between the atmosphere and the hydrosphere is option B, lack of moisture in the air causes pond water to evaporate.

Water cycle is a geological phenomenon to balance the  water content in the atmosphere, hydrosphere and in the biosphere. The water bodies evaporate by the heat radiated by sun.

The convection process make the heat warmed up and converts to the vapor state. This vapor rises to the atmosphere and restore the water content in the atmosphere.

The air moisture can be restored to the land through the cooling of the vapor and pour as rain. This best illustrates the interaction between atmosphere and hydrosphere. Hence, option B is correct.

Find more on water cycle :

https://brainly.com/question/1151425

#SPJ6

Answer:

Water has a high specific heat, which means it absorbs more energy than air to raise its temperature

hoped this helped

Brainless pls

Explanation:

Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor ...

Answer:

Explanation:

Accordingly, any attempt to determine where the helium market will be more than a few years ... and/or recover helium can reduce the amount of helium consumed by as much as a factor..

Answer:

Decreases

E

20

5

Explanation:

Answer:

Decreases

E

20

5

Explanation:

Answer:

One mole of SnO2

Explanation:

SnO2(s) + 2H2(g) ------> Sn(s) + 2H2O(l)

In every question that has to do with stoichiometry, the balanced reaction equation is the first step towards obtaining the correct answer because it serves as a guide in solving the question.

From the balanced reaction equation, we have

1 mole of SnO2 reacts with 2 moles of hydrogen gas to yield two moles of water.

The balanced reaction equation represents one mole of SnO2.

Hence the answer.

Answer:

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.

Explanation:

Answer:

The particles movement increases.

Explanation:

This is because as the particles change from liquid to gaseous state, they acquire more energy due to latent heat of vapourization hence increased movement.

Air pressure decreases as altitude decreases. This phenomenon occurs because the atmosphere's density diminishes with increasing height above the Earth's surface and the correct option is option 2

As one ascends to higher altitudes, there are fewer air particles above, leading to a decrease in air density. Consequently, the pressure exerted by the air decreases at higher elevations.

Conversely, at lower altitudes, the air is denser due to the larger number of air particles above, resulting in higher air pressure. This relationship between air pressure and altitude is crucial for understanding weather patterns, climate changes, and the functioning of various natural processes on Earth.

Thus, the ideal selection is option 2.

Learn more about Air pressure, here:

https://brainly.com/question/15189000

#SPJ5

Answer: D) You run up the stairs in 3 seconds.

Power is the rate at which work is done.  

Sense it said the rate of which the work was done (3 seconds) that would be the answer.

Answer: An outcome variable is a variable that is the final or missing variable in an experiment and a test variable is a variable that is being tested to find the final variable or missing variable (The outcome)

Explanation:

Answer:

The problem will be because:

The error in the construction of the bridge will be actually 40 cm.

Explanation:When you, as an engineer, listen about a scale 1/20, it means that for each 1 cm in the model, it will be 20 cm in the real footbridge (20 times upper to the scale model), then how the error in the model is 2 cm, the real error is 40 cm, in this case, imagine that you didn't know that the bridge will have an error of 40 cm, which is approximately 1,31 ft, from a side of the bridge you begin with the correct measure, and the other side you use the measure with the error of the 40 cm, the result is that when you going to finish the bridge in the center, this won't match, making more expenses to correct that big error.

Answer: The warmer the air is water vapors will condense quicker when it mixes with human or warm air.

Explanation: 6.12 Lab condensation or quizz

Answer:

Option (D) A Generator

Explanation:

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.

Learn what is a Generators here

Visit —

https://brainly.com/question/12950635

Hope my answer helps you✌️

Mark BRAINLIEST