Photosynthesis is a process in which plants prepare food using carbon dioxide, chlorophyll, and water in the presence of sunlight.

Answer:

Law 2:

Pushing a baby on a swing is easier than pushing an adult on the same swing. Water spills from a glass carried by someone who is walking steadily and suddenly stops short.

Law 2:

When thrown with the same force, a soccer ball accelerates more than a bowling ball.

Law 1:

A magician pulls a tablecloth out from under a dish on a table without disturbing the dish.

Law 3:

A rocket launches into space, pushing fuel exhaust in one direction and the rocket in the opposite direction.

Law 1:

A book rests on top of a shelf and does not move until a student accidentally knocks it off.

Explanation:

Newton's laws of motion:

Law 1: Law of inertia

Law 2: Law of force (F = mass x acceleration)

Law 3: Law of Action & Reaction

The laws followed by the given situations are Newton's law of force, Law of inertia and Newton's third law.

Inertia is defined as the tendency of an object to continue its state of rest or motion.

Here,

Considering the situations given,

1. Pushing a baby on a swing is easier than pushing an adult on the same swing.

This is because, the mass of the baby is lesser than that of the adult. So, according to Newton's force equation,

Force, F = ma

Therefore to push a body with more mass, more force should be applied.

Another situation that follows this law from the given situations is:

When thrown with the same force, a soccer ball accelerates more than a bowling ball.

2. Water spills from a glass carried by someone who is walking steadily and suddenly stops short.

This is due to the inertia of the water in the glass. This can be explained by law of inertia.

Another situation that follows this law from the given situations is:

A magician pulls a tablecloth out from under a dish on a table without disturbing the dish.

A book rests on top of a shelf and does not move until a student accidentally knocks it off.

3. A rocket launches into space, pushing fuel exhaust in one direction and the rocket in the opposite direction.

This is according to Newton's third law of motion. The law of action and reaction.

Hence,

The laws followed by the given situations are Newton's law of force, Law of inertia and Newton's third law.

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Answer:

32.5 miles

Explanation:

65/2=32.5

Hope this helps!

Answer:

32.5

Explanation:

Answer: D

Explanation:

It is at organ level because the kidney is an organ

The region that best matches a typical IR spectrum is 4000 to 400 cm-1.

The IR spectrum is a plot of transmitted (or absorbed) frequencies versus transmission intensity (or absorption).

The region that best matches a typical IR spectrum is typically considered to be 4000 to 400 cm-1 , also known as the "fingerprint region" as it contains the majority of the vibrational absorption bands for most organic compounds.

However, it's worth noting that different types of compounds or samples may exhibit different spectral features and may require different regions to be examined in order to obtain meaningful information.

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The distance from the base of the cliff is 13.67 m.

The impact velocity of the block when it falls off the cliff is 15.3 m/s.

Initial velocity of the block, u = 15 m/s

Mass of the block, m = 5 kg

Coefficient of friction, μ = 0.3

Height of the cliff, h = 12 m

μmg = ma

a = μg

a = 0.3 x 9.8

a = 2.94 m/s²

At the initial surface,

Total energy of the block = 1/2mu² - mgh'

E = m(u²/2 - gh)

E = 5(15²/2 - 9.8 x 5)

E = 5 x 63.5

E = 317.5J

The impact velocity of the block when it falls off the cliff is given by,

1/2 mv² = mgh

v = √2gh

v = √(2 x 9.8 x 12)

v = √235.2

v = 15.3 m/s

The distance from the base of the cliff is given by,

R = v√(2h/g)

R = 15.3 x√(2 x 13/9.8)

R = 15.3 x 1.628

R = 13.67 m

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Answer:

Explanation:

6

Probability for X<20 for given probability distribution is 0.85.

Probability is concern with possibility. It is a branch of statistics which deals with the occurrence of a random event. Sum of probabilities for a particular event is one.  Probability has been introduced in statistics to predict how likely events are to happen. Probability means an extent to which something is likely to happen. To find the probability of a particular event to occur, firstly we must know the total number of possible outcomes. The distribution of probability for an event is called as probability distribution.

for example when a coin is tossed, it gives two possible outcomes Head and Tail. There is 50% of chance of getting Head or tail.

The Total probability is the sum of all the probabilities and it is always one.

In this problem Probability that x < 20,

P(x<20) = P(x<-10)+P(x<-5)+P(x<0)+P(x<5)+P(x<10)+P(x<15)

P(x<20) = 0.20+0.15+0.05+0.1+0.25+0.1 = 0.85

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Answer:

it lets out the air inside the balloon and I´m pretty sure it would hit the wall while the air was being let out.

Answer:

 Newton's third law of motion: Your body exerts a downward force on the chair and the chair exerts an upward force on your body.

Explanation:

After one minute, the horse's y-coordinate can be determined using trigonometry as the vertical distance from the starting point. Therefore, after one minute, the horse's y-coordinate is approximately -346.41 m.

To determine the horse's y-coordinate after one minute, we need to consider its circular motion on the track. Since the horse runs counterclockwise around the circular track, we can visualize it as moving on the circumference of a circle with a radius of 400 m.

The horse completes one lap in three minutes, which means its angular velocity is \(\( \omega = \frac{2\pi}{3} \) rad/min\). We can express its angular position at any given time (t) as \(\( \theta = \omega t \)\).

To find the y-coordinate after one minute (t = 1 minute), we can calculate \(\( y = r\sin(\theta) \)\), where r is the radius of the track. Substituting the values, we have:

\(\[ y = 400\sin\left(\frac{2\pi}{3}\right) \]\)

Evaluating the expression, we find:

\(\[ y \approx -346.41 \, \text{m} \]\)

The negative sign indicates that the horse is positioned below the horizontal axis, meaning it has moved downward from the starting point.

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Answer:

The answer is high

Explanation:

I just took the test :))

Higher frequency and higher pitch are produced by sounds with shorter wavelengths. So, long waves sound low and short waves sound high.

Physical characteristics of waves, such as transmission, reflection, polarization, diffraction, and refraction, are examples of wave attributes.

Waves are described mathematically using terms like wavelength, frequency, and amplitude.

Sound and light are two examples of common waves we encounter. Whether you're discussing waves or vibrations.

All of them may be classified according to the following four factors: amplitude, wavelength, frequency, and speed.

According to the graph, pitch perception is influenced by tone strength; below 1000 Hz, pitch tends to decrease with increasing loudness, and beyond 1000 Hz, pitch tends to increase.

Therefore, high pitch that is heard when waves are closely spaced together.

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Answer:

Energy

Explanation:

Edge 2021

As part of his special theory of relativity, Einstein saw mass as a form of energy.

The theory of relativity as stated by Einstein stated that mass and energy are both interconvertible. This explains why energy is released when mass is lost.

Thus, as part of his special theory of relativity, Einstein saw mass as a form of energy.

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Answer:

no :)

Explanation:

ezzzzzzzzzzzzzzzzzzzz

Liquid water is not itself wet, but can make other solid materials wet. Wetness is the ability of a liquid to adhere to the surface of a solid, so when we say that something is wet, we mean that the liquid is sticking to the surface of a material.

Answer:

4 smaller disks

Explanation:

We are given;

Mass of smaller and larger disks = M

Radius of smaller disk = R

Radius of larger disk = 4R

Formula for moment of inertia about cylinder axis is:

I = ½MR²

Thus;

For small disk, I_small = ½MR²

For large disk, I_large = ½M(2R)² = 2MR²

We are told that moment of inertia of System A consists of two of the larger disks. Thus;

I_A = 2 × I_large = 2 × 2MR²

I_A = 4MR²

We are also told that System B consists of one of the larger disks and a number of the smaller disks. Thus;

I_B = I_large + n(I_small)

Where n is the number of smaller disks.

I_B = 2MR² + n(½MR²)

I_B = MR²(2 + n/2)

We are told that the moment of inertia for system A equals the moment of inertia for system B. Thus;

I_A = I_B

So;

4MR² = MR²(2 + n/2)

MR² will cancel out to give;

4 = 2 + n/2

Multiply through by 2 to give;

8 = 4 + n

n = 8 - 4

n = 4

Answer:

The products of cellular respiration are carbon dioxide and water

Explanation:

The distance from Q2 where the net electric field is equal to zero is 144.72 cm.

The net electric field is equal to zero when the total electric field from both charges is equal and opposite. The electric field due to each charge is proportional to the charge and inversely proportional to the square of the distance from the charge. In this case, the electric field from Q1 is directed away from Q2, while the electric field from Q2 is directed towards Q1.

We can use Coulomb's law, E = k * Q / r^2, where k is the Coulomb constant, Q is the charge, and r is the distance from the charge. Plugging in the values, we find that the distance from Q2 where the net electric field is equal to zero is 144.72 cm.

This result is important because it tells us the boundary between two regions of space where the net electric field is in opposite directions. Beyond this boundary, the net electric field is directed towards Q2, while within this boundary, the net electric field is directed away from Q2.

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The moment of inertia for a disk with mass of 500g and radius of 12cm rotated about its diameter is 7.2 × 10-³kgm².

Moment of inertia is a measure of a rigid body's resistance to change in its angular velocity around a given axis.

The formula for the moment of inertia is the “sum of the product of mass” of each particle with the “square of its distance from the axis of the rotation”. The formula of Moment of Inertia is expressed as follows:

I = mr²

Where;

According to this question, a disk with mass of 500g and radius of 12 cm rotated about its diameter. The moment of inertia can be calculated as follows:

I = 0.5kg × 0.12²m

I = 7.2 × 10-³kgm²

Therefore, 7.2 × 10-³kgm² is the moment of inertia of the disk.

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When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

When a 9.0 V battery is connected to a bulb and 0.1 A of current flows through the bulb, we can calculate the resistance of the bulb using Ohm's Law. Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.

To find the resistance, we can rearrange Ohm's Law equation (V = IR) to solve for R, where V is the voltage, I is the current, and R is the resistance.

First, let's plug in the given values:

V = 9.0 V (voltage)
I = 0.1 A (current)

Now, we can rearrange the equation to solve for R:

R = V / I

Substituting the given values:

R = 9.0 V / 0.1 A

Dividing 9.0 V by 0.1 A, we get:

R = 90 ohms

Therefore, the resistance of the bulb is 90 ohms.

In summary, when a 9.0 V battery is connected to a bulb and 0.1 A of current flows through it, the resistance of the bulb is 90 ohms.

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a)5m/s b)5

the 5 is because you add the seconds to get 8 seconds and then do the same with the distance to get 40. 40/8 = 5. speed = 5

Velocity = displacement/change in time

V = 40/8

I just realized how unorganised my math looks but I hope this is helpfull

The magnetic domains in a non-magnetized piece of iron are oriented randomly.

In a non-magnetized piece of iron, the magnetic domains are not aligned in any specific direction. The magnetic domains consist of small regions within the iron where the atomic magnetic moments are aligned. However, the orientations of these domains are random, resulting in a net magnetic field of zero. When an external magnetic field is applied to the iron, these domains start to align in the direction of the external field, leading to magnetization of the material. So, in their initial state, the magnetic domains in non-magnetized iron are randomly oriented, lacking any specific alignment or orientation.

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Answer:

passes

Explanation:

Traditionally, eclipses are divided into two major types: solar and lunar. Solar eclipses occur when the Moon passes between Earth and the Sun, leaving a moving region of shadow on Earth's surface. Lunar eclipses occur when Earth passes between the Sun and the Moon, casting a shadow on the Moon.

Answer: Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events. The scope and application of measurement are dependent on the context and discipline. In the natural sciences and engineering, measurements do not apply to nominal properties of objects or events, which is consistent with the guidelines of the International vocabulary of metrology published by the International Bureau of Weights and Measures. However, in other fields such as statistics as well as the social and behavioural sciences, measurements can have multiple levels, which would include nominal, ordinal, interval and ratio scales.

Explanation:

GREETINGS!

lightening usually strikes the metal pole and cables above the building because they provide a safe low resistance pathway to the lightening to move from building from the concrete steel to the ground below, thats how building doesnt get any damage and high electric charge passes through it

HOPE IT HELPS YOU!

1 meter per second squared is equivalent to 0.001 kilometer per second squared.

To convert 1 meter per second squared (m/s²) into kilometer per second squared (km/s²), we need to consider the conversion factor between meters and kilometers.

1 kilometer is equal to 1000 meters, so we can use this conversion factor to convert the units.

First, let's convert the acceleration from meters per second squared to kilometers per second squared:

1 m/s² = (1/1000) km/s²

Therefore, 1 meter per second squared is equal to 0.001 kilometer per second squared.

So, 1 m/s² = 0.001 km/s².

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Answer: Metal ions tend to lose their electrons and form positive ions. Both iron and zinc are metals, so they both form ions that are positively charged. However, ions with the same charge repel each other. That is why an iron ion is not attracted to a zinc ion.

Answer:

the speed of the waves is 150 cm/s

Explanation:

Given;

frequency of the wave, f = 10 Hz = 10

distance between 4 nodes, L = 15.0 cm

The wavelength (λ) of the wave is calculated as follows;

Node to Node = λ/2

L = 2(Node to Node) = (4 Nodes) = 2 (λ/2) = λ

Thus, λ = L = 15.0 cm

The speed (v) of the wave is calculated as follows;

v = fλ

v =  10 Hz   x  15.0 cm

v = 150 cm/s

Therefore, the speed of the waves is 150 cm/s

Answer:

The hotter star radiates 625 times more energy per second from each square meter of its surface

Explanation:

Temperature of the hotter star is 30000 K

temperature of the cooler star = 6000 K

From Stefan-Boltzmann radiation laws, for a non black body

P = εσA\(T^{4}\)

where

P is the energy per second or power of radiation

ε is the emissivity of the body

σ is the Stefan-Boltzmann constant of proportionality

A is the area of the sun

T is the temperature of the sun

The sun can be approximated as a black body, and the equation reduces to

P = σA\(T^{4}\)

For the hotter body,

P = σA(\(30000^{4}\)) = 8.1 x 10^17σA  J/s

For the cooler body,

P = σA(\(6000^{4}\)) = 1.296 x 10^15σA   J/s

comparing the two stars energy

==> (8.1 x 10^17)/(1.296 x 10^15) = 625

This means that the hotter star radiates 625 times more energy per second from each square meter of its surface

Answer:

the mass

Explanation:

mass doesn't change if you move to a different planet or moon