this is a voice recording of the text of a book that you listen rather than read.​

Answer: D. It shows Newton's first law of motion, which states that an object tends to stay in motion unless an outside force acts upon it.

Explanation:

Newton's first law of motion states that an object tends to stay in motion unless an outside force acts upon it.

Answer:

refraction

Explanation:

When the wave moves from medium 1 to medium 2, then the wave gets refracted. Then the correct option is C.

A wave is an energetic disturbance in a medium that doesn't include any net particle motion. Elastic deformation, a change in pressure, an electric or magnetic intensity, an electric potential, or a change in temperature are a few examples.

A wave is a dynamic disturbance of one or more variables that propagates in physics, geometry, and related sciences. When waves oscillate frequently around an equilibrium value at a certain frequency, they are said to be periodic.

The bending of waves as they go from one substance to another is known as wave refraction. It bends when the wave enters a new material because the wave's speed changes. The optical density or index of refraction of the material affects how light waves bend.

Thus, the correct option is C.

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The missing options are given below.

absorption

diffraction

refraction

reflection

Aristarchus measured the angle between the sun and the moon when exactly half of the moon was illuminated, he found this angle to be 90 degree.

The Moon exhibits a circular motion around the Earth as well as the relative position occupied by the sun, the earth, and the moon results in the creation of the lunar phases.

Aristarchus realized the fact that the Moon was exactly half illuminated as it forms a right triangle with the Sun and the Earth. As by knowing the distance occupied between the Earth and the Moon, the one and only thing he needed was the angle that existed between the Moon and Sun to compute the distance of the Sun itself at that present moment

In this case, whenever the Sun is illuminating half of the Moon, the angle between the sun and the moon must be at 90°. Actually, this angle changes according to the movement of the moon as there it will be zero degrees for the new moon as well as 180° for the full moon.

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Answer:

The physical activity pyramid helps in organizing the person's daily life routine. It separated the exercises into different levels and helps the person to inherit a fit and healthy life style.

(a) The unbalanced force will be "0.2 N".

(b) The mass of book "1.818 kg".

Given:

(a) Total unbalanced force,

→ \(F_{net} = 2.8-2.6\)

          \(= 0.2 \ N\)

(b) By applying Newton's second law,

→ \(F = ma\)

or,

→ \(m = \frac{F_{net}}{a}\)

By substituting the values,

      \(= \frac{0.2}{0.11}\)

      \(= 1.818 \ kg\)

Thus the above approach is correct.  

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Answer:

Option (b).

Explanation:

Two forces are acting perpendicularly on an object. We have, F₁ = 8.2 N and F₂ = 20.6 N

We need to find the net force acting on the object. When two forces are acting in perpendicular to each other, the net force on it is given by :

\(F=\sqrt{F_1^2+F_2^2} \\\\=\sqrt{8.2^2+20.6^2} \\\\=22.17\ N\)

or

F = 22 N

Let \(\theta\) is the angle. It can be given by :

\(\tan\theta=\dfrac{F_1}{F_2}\\\\\tan\theta=\dfrac{8.2}{20.6}\\\\=21.7^{\circ}\)

or

\(\theta=22^{\circ}\)

So, the net force is 22 N and the direction is 22° counterclockwise from F₁. Hence, the correct option is (b).

The time taken to accelerate from 15 m/s to 21 m/s by a rate of 3 m/s is 2 seconds. Then, the distance travelled by the motorcyclist while accelerating is 36 m.

Acceleration is the rate of change in velocity of an object. Like velocity, it is a vector quantity. As the magnitude or direction or both of the velocity changes the object is said to have an acceleration.

Given v1 = 15 m/s

v2 = 21 m/s

a = 3 m/s²

then t = v2- v1/ a

t = 21 m/s - 15 m/s /3 m/s² = 2 seconds.

Now, the distance travelled while accelerating is calculated as follows:

s = v1 t + 1/2 at²

  = 15 m/s × 1/2 3m/s² × 2 s = 36 m

Therefore, the motorcyclist will travel up to a distance of 36 m.

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Answer: The four physical properties that describe a liquid is when it freezes, boils, evaporates, or condenses.

Has:

The distribution of geologic activity is random pattern.

Geology refers to the science that studies the structure of the earth and other planet together with their origins and development, especially by examination of its rocks.

Distribution is the act of dividing and apportioning into different portions and dispense.

Geological distribution is the scientific study of dividing the structure of the earth and its origins. The pattern of geological distribution is random such that it doesn't have a definite direction.

So therefore, the distribution of geologic activity is random pattern.

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The second clod of material, is more likely to form a solar system.

Gravity plays a crucial role in the formation of solar systems. When objects with large masses are closely packed together, their strong gravitational attraction can cause them to start rotating and clumping together into larger bodies. Over time, the largest of these bodies may become the central star of the solar system, while the smaller objects continue to orbit it. This process is known as accretion, and it is the first step in the formation of a solar system.

On the other hand, if the objects have small masses and are widely spaced, their gravitational attraction is too weak to cause them to clump together and form a central star. Instead, they would continue to float freely in space, never becoming dense enough to collapse under their own gravitational force.

In conclusion, it is the strong gravitational attraction between closely packed objects with large masses that makes it more likely for a clod of material to form a solar system.

Answer:

5,760

Explanation:

1 minute is equal to 60 seconds. so you will multiply 60 times 96. and that equals 5,760

Answer:

It is imjportant to study rocks because geology gives an untouvhed pice of our history. Rocks can tell about our past, whether it is weather, animals, plants, tools, climate, or anything else, rocks can help solve world problems.

Answer:

that jet will fly 1200 km in 2 hours

Answer: the velocity is -2

Explanation: good luck don't think its wrong everyone calls me the human calculator

1. Reducing Carbon Entering: Planting more trees at the location is an effective way to reduce the amount of carbon at this location.

Carbon is an element found in abundance in the Earth's atmosphere and is one of the most abundant elements in the universe. Carbon is a key component of all living organisms and serves as the backbone of life on Earth. Carbon exists in several different forms, including coal, oil, natural gas, and diamonds, and can be found in many other materials, such as plastics, paper, and fabrics.

Trees absorb carbon dioxide from the atmosphere and use it to produce oxygen through photosynthesis. This process helps to reduce the amount of carbon entering the location.
2. Increasing Carbon Exiting: Installing solar panels at the location is an effective way to increase the amount of carbon exiting the location. Solar panels convert solar energy into electricity, releasing carbon dioxide into the atmosphere during the process. This helps to reduce the amount of carbon at the location by releasing it back into the atmosphere.

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Answer:

4.35x10¹⁷s is the age of the universe

Explanation:

The age of the universe is 13.8 billion years.

As we know, 1 billion years = 1x10⁹years

13.8 billion years * (1x10⁹years/ 1 billion years) = 13.8x10⁹ years.

As 1 year = 3.154x10⁷ seconds, 13.8x10⁹ years are:

13.8x10⁹ years * (3.154x10⁷ seconds / 1 year) =

Answer:

10.4 m/s²

Explanation:

use the formula:  V² = Vo² - 2aΔx

Plug in the known values then solve for a.  Vo = 0 because the car starts from rest.

(25 m/s)² = 0 + 2a(30m)

a = (625 m²/s²)/(2)(30m) = 10.4 m/s²

Answer:

You did not include the picture but I found a similar question that I can explain and you can then use to answer yours.

The middle scale is in hundreds. The arrow here is pointing to 100 so the mass of the object is more than 100g but less than 200g.

The highest scale is in 10s. The arrow is pointing to 0. This means that the object weighs more than 100 but less than 110 g. If the arrow was pointing to 10 then the object would weigh more than 110g.

The bottommost scale is in 1s. Notice how the scale is pointing to 5.7 grams. The object is therefore 105.7 grams.

Look for the option closest to this because the 105.7g might be rounded up.

You will then find 105.65g as your answer.

Answer:433.0 g

Explanation:i’m not 100% sure

When direct current flows through an electrical coil, it generates a magnetic field.

If the direct current flowing through the coil is increasing, the magnetic field strength will also increase.

This, in turn, will cause the coil to generate a stronger electromagnetic force, which can be used for various purposes such as powering motors, generating electricity, and more.

However, if the current flow becomes too strong, it can cause the coil to overheat and potentially damage it.

Therefore, it's important to ensure that the coil is designed to handle the amount of current flowing through it to prevent any potential damage.

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The description that is not correct for the hexagon pattern on Saturn is  d. the hexagon pattern has a lifetime shorter than 10 Earth years.

Explanation:
The hexagon pattern is indeed in the polar region of the Northern Hemisphere

(a), was first discovered by the observations from the Voyager spacecraft, not Cassini

(b), and the area inside the hexagon has a complicated structure

(c). However, the hexagon pattern has been observed for more than 30 Earth years, indicating that its lifetime is longer than 10 Earth years(d).

Saturn's hexagon pattern is a persistent cloud pattern in the planet's atmosphere that has been observed for several decades. The hexagon is a six-sided polygonal shape, and the sides of the hexagon are each about 13,800 km in length, which is greater than the diameter of Earth. The hexagon is located at the planet's north pole and is thought to be a standing wave pattern in the planet's atmosphere.

The hexagon was first discovered in images sent back by the Voyager 1 and 2 spacecraft in the 1980s, and has since been observed by other spacecraft such as the Cassini-Huygens mission, which orbited Saturn from 2004 to 2017. The hexagon is thought to be a result of the interaction between Saturn's atmosphere and its rotation. It is believed that the hexagon is created by a jet stream that flows around the planet's north pole, and that the shape is maintained by the rotation of the planet.

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Answer:

b ac power source

Explanation:

ieififuffucjcjcicogore8e8e9e9e9e9ew0ww0w0w

Answer:  B.

switch

Explanation: edmentum

A shadow zone occurs for P-waves because P-waves refract as they go through the outer core, following a curved path through the mantle, and they do not travel through the outer core.

In more detail, P-waves are generated during earthquakes and propagate through Earth's layers. When they reach the outer core, which is liquid, their speed decreases, causing them to refract or bend.

This refraction creates a curved path through the mantle, leading to an area on Earth's surface where P-waves are not detected, known as the shadow zone. The shadow zone occurs between approximately 103 and 142 degrees from the earthquake's epicenter.

P-waves can still be detected beyond this range because they refract again as they exit the outer core, returning to a more direct path. The fact that P-waves do not travel through the outer core contributes to the formation of the shadow zone, as their energy is not transmitted through this layer.

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Only the resistor connected in series which is resistor A will have the least current passing through it.

In this problem, we have some resistors that are connected in series and some in parallel.

The formula of resistors connected in series is given as;

R(series = R1 + R2 + R3 + ....+ Rn

The formula for resistors connected in parallel are

R(parallel) = 1/ R1 + 1/R2 + 1 / R3 +...+ 1/Rn

In this case, we have to assume that the voltage passing through the circuit is uniform and let's assume is 2V

V = IR

I = V/R

From the equation above, we can see that only the series resistance will have a small current passing through it.

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The percent uncertainty in the measurement of an infant's pulse rate, which is recorded as 135 +/- 6 beats/min, is 4.4%.

The percent uncertainty is calculated by dividing the range of the measurement (in this case, 6 beats/min) by the average value of the measurement (in this case, 135 beats/min), and then multiplying by 100 to express it as a percentage. In this case, the range is 6 beats/min and the average value is 135 beats/min. Dividing 6 by 135 gives 0.0444, and multiplying by 100 gives 4.44%. Therefore, the percent uncertainty in this measurement is 4.4%.

This measurement indicates that the pulse rate of the infant can vary within a range of +/- 6 beats/min from the average value of 135 beats/min. The percent uncertainty provides a measure of the relative variability or precision of the measurement. A lower percent uncertainty would indicate a more precise measurement with less variability, while a higher percent uncertainty would indicate a less precise measurement with greater variability. In this case, a percent uncertainty of 4.4% suggests a reasonably precise measurement of the infant's pulse rate.

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As wavelength increases, the energy of a photon decreases and its frequency decreases.

Wavelength is a measure of the distance between consecutive peaks or troughs of a wave. It is a basic property of any wave, including electromagnetic waves such as light, radio waves, and microwaves, and also mechanical waves such as sound. The wavelength of a wave determines its color, frequency, and energy. A shorter wavelength corresponds to a higher frequency and higher energy, while a longer wavelength corresponds to a lower frequency and lower energy.

Here,

This relationship is described by the equation E = hf, where E is the energy of a photon, h is Planck's constant, and f is the frequency of the photon.

As wavelength increases, the energy of a photon decreases and its frequency decreases.

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Answer:

not enough

Explanation:

information given

Answer:

Sample Response: In the lab, I discovered the air pressure, air temperature, and relative humidity conditions that create snow, rain, thunderstorms, fog, and clear skies. I learned that low-pressure areas usually experience snowy, rainy, and stormy weather, and that high-pressure areas usually experience either foggy or sunny weather. Knowing how these atmospheric conditions influence weather help weather forecasters predict weather patterns through maps and other information.

(Sorry this was not fast enough )

Answer:

It would be PE=16kg * 9.8 m/s^2 * 1m = 160 J

Explanation:

The person who asked this question ended up answering his own question so I'm here to let you know all that the answer was founded by the person whos posted the question himself full credit goes to him :)

A furnace with a rated value of 96,000 - 128,000 BTU per hour would be needed to heat a 3,200 ft2 passive solar home in Austin, Texas, using the rule of thumb method.

The rule of thumb method for sizing a furnace is to estimate the required heating capacity based on the square footage of the home. A common guideline is to have a furnace with a heating capacity of 30-40 BTU per square foot.

For a 3,200 ft2 passive solar home in Austin, Texas, we can estimate the required heating capacity as follows:

Heating capacity = (30-40) BTU per square foot x 3,200 square feet

Heating capacity = 96,000 - 128,000 BTU per hour

Therefore, a furnace with a rated value of 96,000 - 128,000 BTU per hour would be needed to heat a 3,200 ft2 passive solar home in Austin, Texas, using the rule of thumb method.

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