List 2 examples of physical properties that don't
change if the sample size changes.

Answer:   2.03259656 × 10^8

Explanation:

1.5 x 10 = 15

√(15) = 3.87

put this to the side until we sum everything up..

3.5 × 10 = 35

35 ^ 5 = 52521875

So, now lets sum it all up....

(3.87) x (52521875) = 203259656.25

but in scientific notation it is:  2.03259656 × 10^8

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A stopwatch shows that 2.06 min has passed, hence it shows 123.6 seconds.

To convert minutes to seconds, you can multiply the number of minutes by 60 since there are 60 seconds in 1 minute.
In this case, we have 2.06 minutes.
To convert this to seconds, we can multiply 2.06 by 60:
2.06 * 60 = 123.6 seconds
Rounding to one decimal place, we get:
123.6 seconds rounded to one decimal place is 123.6 seconds.

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Geothermal energy is heat that occurs deep within the earth. Geothermal energy is a clean, renewable resource that can be used for heat and electricity.

Humans can harvest geothermal energy in the following ways. A geothermal power plant uses heat from deep underground to generate steam and generate electricity. Geothermal heat pumps use heat from near the surface to heat water or heat buildings. Geothermal power plants uses the steam to generate electricity. The steam comes from reservoirs of hot water several miles or more underground. The steam spins turbines and drives generators to generate electricity. These are the features of geothermal energy within the earth.

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Answer:

500,000 cm

Explanation:

5 km = 5×10³ m

1 cm = 0.01 m

5×10³/0.01 = 500,000 cm

Answer:

The Potential Energy At The Bottom Of The Waterfall is270000J

The power of the eye when viewing an object 3.00 m away is 58.82 diopters (D).

What is power of the eye?

The power of the eye refers to its ability to refract light and focus it onto the retina, enabling clear vision at different distances. The power of the eye is measured in diopters (D).

In the case of the human eye, it is generally assumed to have an equivalent focal length of approximately 17 mm, which is equivalent to 0.017 m. This value represents the average refractive power of the eye.

To calculate the power of the eye when viewing an object 3.00 m away, we can use the following formula:

P = 1 / f

P = 1 / 0.017

P = 58.82 D

Therefore, the power of the eye when viewing an object 3.00 m away is approximately 58.82 diopters (D).

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The kinetic energy of the bat which strikes the ball with the force of 2 x 10⁴ N is a) 1.0 x 10² J

The force at which the bat strikes the ball = 2 x 10⁴ N

The distance traveled by the ball = 5 x 10⁻³ m

The work done by the bat is the kinetic energy of the bat. Thus, the formula to find the kinetic energy of the bat is

                    K.E = F x d

where K.E is the kinetic energy of the bat

              F is the force of the bat

              d is the distance traveled by the ball.

Let us substitute the known values in the above equation, we get

                   K.E = 2 x 10⁴ x 5 x 10⁻³

                         = 10 x 10

                         = 1.0 x 10² J

Therefore, the kinetic energy of the bat is 1.0 x 10² J

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The basic difference is that the motion of object remain unchanged in case of balanced forces while it changes when an object experiences unbalanced forces

When the forces experienced by an object have equal strength and are acting in opposite directions, they are known as balanced forces while the forces those differ in strength and are probably acting in any direction except opposite, they are known as unbalanced forces.

The balanced forces cancel out each other, and the motion of the object remains unchanged but unbalanced forces can change the velocity or direction of a moving object

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Answer:

This question is incomplete, as it lacks options. The options are:

A. chemical energy is the same and additional energy is produced as heat and light.

B. chemical energy is more than the amount of heat and light

C. the amount of chemical energy is less than the amount of heat and light energy

D. the amount of chemical energy equals the amount of heat and light energy.

The answer is D

Explanation:

According to the first law of thermodynamics, which is the LAW OF CONSERVATION OF ENERGY, energy is neither created nor destroyed but can only be changed from one form to another. This law states that no energy in a system is lost, hence, the input energy must be equal to the output energy.

When a log of wood is burnt, the chemical energy stored in it is converted to heat energy and light energy. Based on the law of conservation of energy, the amount of chemical energy present in the log before the burning process must equal the amount of light and heat energy it changed to after the burning process.

That is, chemical energy = light energy + heat energy.

Answer:

The first cars gonna have more, because the more mass slows it down, and the first car with it have having less more energy is able to flow through it.

Explanation:

The second car will have more mass and hence the kinetic energy of the second car will be lesser than the first car.

Kinetic energy is the energy possessed by a body by virtue of its motion.

The formula for calculating the kinetic energy of a body is expressed as ;

KE = 1/2mv²

As we can see from the formula, the kinetic energy of a body depends on the mass of such an object.

Note that the higher the mass of an object, the slower the kinetic energy of the object.

From the question, we can see that the second car is having a  mass six times the mass of the first car, this shows that the second car will have more mass and hence the kinetic energy of the second car will be lesser than the first car.

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Answer:

so here the initial momentum was all in the X direction. This is Equalling the mass. I'm someone multiplied by visa one initial Equalling 1345 kilograms multiplied by 15.7 meters per second. This is Equalling 2.11 times 10 to the fourth kilograms meters per second. Now the car stick together and we can say that the final momentum is Equalling. I'm someone plus himself to multiplied by the final velocity. This is gonna be equal to 1345 kilograms plus 1900 23 kilograms. This is multiplied by 14 0.5 meters per second. And we find that the final month Thomas Equalling 4.74 times 10 to the fourth kilograms meters per second. Now the y component of the final momentum, we can say that he's sub final. Why would be equaling two 4.74 times 10 to the fourth kilograms meters per second? This would be equally rather multiplied by sign of 63.5 degrees. This is Equalling 4.24 times 10 to the fourth kilograms meters per second. By law, of the conservation of momentum. We can say that the Y component of the final momentum equals the why component of the initial momentum. This is equaling EMS up to visa to initial and be some to initial is found to be equal to the final. The white component of final momentum divided by the second cars mass and so this would be 4.24 times tend to the fourth kilograms meters per second, divided by M sub 2 1923 kilograms and this is giving us 22.0 meters per second. And of course this is greater than 20 whether 20.1 meters per second. And so we can say that yes, this car is exceeding the speed limit. 

Explanation:

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The weight of person on the moon can be given as,

Substitute the known values,

Thus, the weight of person on the moon is 18.7 N,

The image height on the detector will change by a factor of 2 if you change from a 50-mm-focal-length lens to a 100-mm-focal-length lens and refocus.

The magnification of a lens is given by the ratio of the image height to the object height. Since the object height remains the same, the change in magnification is solely determined by the change in focal length.

The magnification of a lens is given by the formula:

Magnification = - (image distance / object distance).

Since we are only interested in the ratio of image heights, we can ignore the negative sign.

For the 50-mm lens, the magnification is:

Magnification1 = 50 mm / object distance.

For the 100-mm lens, the magnification is:

Magnification2 = 100 mm / object distance.

Taking the ratio of the two magnifications:

Magnification2 / Magnification1 = (100 mm / object distance) / (50 mm / object distance) = 100 mm / 50 mm = 2.

Therefore, the image height on the detector changes by a factor of 2 when switching from a 50-mm-focal-length lens to a 100-mm-focal-length lens and refocusing.

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The quantities that are conserved during radioactive decay are:

A. Electric charge: The total electric charge of the system is conserved. Radioactive decay processes do not change the total electric charge.

B. Nucleon number: The total number of nucleons (protons and neutrons) is conserved. Radioactive decay processes typically involve the emission of particles or radiation, but the total number of nucleons remains constant.

F. Mass: The total mass of the system is conserved. Although some mass may be converted into energy during radioactive decay (according to Einstein's mass-energy equivalence principle, E=mc²), the total mass before and after the decay process remains the same.

The quantities that are not conserved during radioactive decay are:

C. Angular momentum: The total angular momentum of the system is not necessarily conserved during radioactive decay. Different decay processes may involve the emission of particles with different angular momenta, resulting in a change in the overall angular momentum of the system.

D. Linear momentum: The total linear momentum of the system is not necessarily conserved during radioactive decay. Emitted particles or radiation can carry linear momentum, and the total momentum before and after the decay process may differ.

E. Energy: The total energy of the system is not necessarily conserved during radioactive decay. Energy can be released or absorbed during decay processes, resulting in a change in the overall energy of the system.

Therefore, the conserved quantities during radioactive decay are electric charge, nucleon number, and mass. Angular momentum, linear momentum, and energy are not necessarily conserved.

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The magnitude of vector A is 5.1.

This can be found by using the Pythagorean theorem, which states that the magnitude of a vector can be found by taking the square root of the sum of the squares of its components.

In this case, A can be broken down into two components, A = 4i + j. The magnitude of A is then calculated by taking the square root of 4² + 1², which is equal to 5.1.

To solve the problem, we can use the information given in the question. Vector B added to A gives a result of 6i + j, and subtraction of B from A gives -4i + 7j. We can add these two equations to obtain A = 2i + 8j. We can then use the Pythagorean theorem to calculate the magnitude of A, which is 5.1.

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The order in which you see the images of animals in the plane mirror as you walk along the path is 2, 3, 1, 4.

To determine the order in which you see the images of animals in the plane mirror as you walk along the path, we need to consider the reflections of the animals in the mirror.

We can see that the mirror is located on the wall along the dashed line path. As you walk along the path, the mirror will reflect the animals that are located behind you (opposite to the mirror). The order in which you see the images of the animals will depend on their positions relative to the mirror.

Assuming the numbers represent the animals' positions, the order in which you would see the images in the plane mirror as you walk along the path would be as follows

1. Animal 2

2. Animal 3

3. Animal 1

4. Animal 4

As you walk past the mirror, Animal 2 will be the first to appear in the mirror since it is closest to the mirror on the opposite side of the path. Next, Animal 3 will appear in the mirror as you move further along the path. Animal 1 will be visible in the mirror as you continue walking, and finally, Animal 4 will become visible in the mirror as you pass it.

So, the order in which you see the images of animals in the plane mirror as you walk along the path is 2, 3, 1, 4.

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Answer:

Biodiversity is the biological variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.

Answer:

Bio means life

Explanation:

Biodiversity means life on earth.

Answer:

below

Explanation:

When sound travels from a loudspeaker to a microphone, it does so through a medium such as air or water. The sound waves created by the loudspeaker cause the particles in the medium to vibrate, creating a disturbance in the air molecules.The vibrating air molecules then collide with other molecules, causing them to vibrate as well. This creates a chain reaction, with the sound wave traveling through the medium until it reaches the microphone.

As the sound wave reaches the microphone, it causes the diaphragm of the microphone to vibrate. This vibration creates an electrical signal that is then transmitted to a recording device, such as a computer or tape recorder.

The electrical signal is then processed and stored in the recording device, where it can be played back later. The sound wave is thus converted into an electrical signal, which can be manipulated and processed as needed for various applications.

Overall, the process of sound traveling from a loudspeaker to a microphone involves the conversion of sound waves into electrical signals through the vibration of particles in a medium.

The amplitude of light waves helps us understand light by determining the brightness of light sources and detecting the effects of physical phenomena on light waves.

The amplitude of a wave is a measure of its strength or intensity. In the case of light waves, the amplitude determines the brightness of the light.

More specifically, the amplitude of an electromagnetic wave (which includes light waves) is the maximum displacement of the electric and magnetic fields from their equilibrium values as the wave propagates through space. The intensity of the light is proportional to the square of the amplitude of the electromagnetic wave.

Therefore, by measuring the amplitude of light waves, we can determine the relative brightness of different sources of light. Additionally, changes in the amplitude of light waves can be used to detect and measure the effects of various physical phenomena, such as reflection, refraction, and absorption.

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Answer:

Its 13n

Explanation:

for 1n its 0.2 times that by 13 and you get 2.6

Answer:

the answer is 8n

Explanation:

hope this helps

Answer:

Well it really depends because he found out about a lot of things in a lot of scientific fields actually. He is known for contributing Pascal's triangle and probability theory. He also invented an early digital calculator and a roulette machine. In the field of physics, Blaise contributed to the study of atmospheric pressure by discovering that vacuums are real and exist in the real world.

Answer:

Well it really depends because he found out about a lot of things in a lot of scientific fields actually. He is known for contributing Pascal's triangle and probability theory. He also invented an early digital calculator and a roulette machine. In the field of physics, Blaise contributed to the study of atmospheric pressure by discovering that vacuums are real and exist in the real world.

Explanation:

Answer:  A big Yes

Explanation: Viscosity depends strongly on temperature. In liquids, it usually decreases with increasing temperature, whereas, in most gases, Viscosity increases with increasing temperature.

As temperature increases, the average kinetic energy of the molecules also increases; it more easily overcomes the attractive forces between molecules. Therefore, Viscosity decreases with increasing temperature.

For example, when syrup is cold it has a high viscosity and can be difficult to pour. When heated in a microwave, the viscosity decreases and the syrup flows more freely. Similarly, Honey and oil tend to flow better at higher temperatures.

Both cohesion and molecular interchange contribute to liquid viscosity.  With high temperatures, viscosity increases in gases and decreases in liquids, the drag force will do the same.

When a liquid is heated, the kinetic energy of its molecules increases and the intermolecular attraction becomes weaker. Hence, the viscosity of a liquid decreases with an increase in its temperature.

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Answer: A standard 9V battery has about 400-600 mAh capacity. In the most basic terms, these batteries can supply about 500 milliamps for one hour before being "dead". With electricity, we measure the amount of charge flowing through the circuit over a period of time. Current is measured in Amperes (usually just referred to as "Amps"). An ampere is defined as 6.241*10^18 electrons (1 Coulomb) per second passing through a point in a circuit. In a series circuit, amperage, or amplitude, of the current remains constant and can be calculated using Ohm's law V = I/R while the voltage drops across each resistor that can be summed up to get the total resistance.

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Answer:

C. sodium combines with chlorine to form sodium chloride

Explanation:

Answer:

C. sodium combines with chlorine to form sodium chloride.

Explanation:

The final salt concentration as a percentage is 2.96%.

To find the final salt concentration of the mixture, we need to first calculate the total amount of salt in each solution and then add them together.
For solution A, we have 4.47 kg x 0.025 = 0.11175 kg of salt.
For solution B, we have 1.18 kg x 0.047 = 0.05546 kg of salt.
Adding these two values together, we get a total of 0.11175 kg + 0.05546 kg = 0.16721 kg of salt in the mixture.
To find the percentage of salt in the final solution, we need to divide the amount of salt in the mixture by the total amount of the mixture and then multiply by 100.
The total amount of the mixture is 4.47 kg + 1.18 kg = 5.65 kg.
So, the final salt concentration is (0.16721 kg / 5.65 kg) x 100% = 2.96%
Therefore, the final salt concentration as a percentage is 2.96%.

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The statement is true.

Pressure waves are generated by object vibrations and are the source of sound waves.

When an object vibrates, it also causes the nearby medium particles to vibrate. These vibrating particles subsequently cause the particles nearby to vibrate as well.

The vibrations created by an object are transmitted in this way until they reach the ear.

There are parts where the particles are more tightly packed, or high pressure, and areas where the particles are more dispersed, or low pressure, depending on which direction the particles moving a section of a sound wave vibrate back and forth in. These types of waves are called longitudinal waves.

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Speed or Velocity is the distance at which a person or object is moving per time.

The car with the highest average velocity is Car B

It would take Car A 7.33 hours to travel the same distance as Car B

We would solve the question in two parts.

Part A

The formula used to calculate the average velocity is :

Distance (km) / Time (hr)

Average velocity for Car A = 1200 km/8 hr

= 150 km/hr

Average velocity for Car B = 1100 km/ 6.5 hr

= 169.23 km/hr

Average velocity for Car C  = 1300 km/ 8.3 hr

= 156.63 km/hr.

Therefore, the car with the highest average velocity is Car B

Part B

How long would it have taken the slowest car to travel the same distance as the fastest car?

The slowest car is Car A with an average velocity of 150 km/hr

The time it would take for Car A to drive the same distance as Car B is calculated using the formula

Time = Distance of Car B/ Average velocity of Car A

Distance of Car B = 1100 km

Average velocity of Car A = 150 km/ hr

Time = 1100km / 150 km/hr

= 7.33 hours

Therefore, it would take Car A 7.33 hours to travel the same distance as Car B

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