2. Using the same list of living things show how they could be classified into three groups.

Group 1 ________
Group 2 ________
Group 3 _________

Using the same list, show how they could be classified into four groups.

Group 1 ________
Group 2 ________
Group 3 _________
Group 4 __________

Please someone help as soon as possible.

and for this assignment group has have a different name while you are using these words in the picture.

oh almost forgot part 1 of this in the picture also.
​

Answer:

i'm pretty sure it's 81 calories

Answer:

Explanation:

The density of a substance can be found by using the formula

\(density = \frac{mass}{volume} \\\)

From the question

mass of iron = 8 g

volume = final volume of water - initial volume of water

volume = 49 - 46 = 3 mL

We have

\(density = \frac{8}{3} \\ = 2.666666...\)

We have the final answer as

Hope this helps you

Answer:

In series

Explanation:

Ammeter is used in electric circuits to measure the amount electric current that passes through the circuit.

Now, as a rule, this ammeter is always connected in series with the wires in the circuit where the current is being measured so that sufficient current can pass through it.

The acceleration of the skateboarder is calculated out to bbe -2.33 m/s^2, when travelled at 7 meters per second.

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Answer:

Mantlee

Explanation:

The disk has mass 110 kg and radius 3.8 m is he value of the full angular momentum of the woman-disk machine is 9,759.7 kgm²/s.

The given parameters;

Mass of the woman, M = 50kg angular pace of the disk, w = 0.8rev/s

Mass of the disk, radius, r = 4.3m m = 110kg

The value of the full angular momentum of the woman-disk machine is calculated as follows;

I t =I disk omega+I woman

I t =(I disk +I woman )

\(I t =( 1/2 x m x r ^ 2 + M x r ^ 2I \\t = (1/2 x 110 x 4.3 ^ 2 + 50 x 4.3 ^ 2) *\)

\(I t = (1941.45kg x m ^ 2) x 5.0%I t =9, 759.7kg x m ^ 2\)/

Thus, the value of the full angular momentum of the woman- disk machine is 9,759.7 kgm²/s

\(t = 9.759 * 0.7ka m ^ 2.\)

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The pellet has a kinetic energy of 4.9 10-2 J as it exits the spring.

Kinetic energy is the term for the energy present in an object in motion. Examples of kinetic energy include you walking down the street, the globe rotating around the sun, and motion in space. The relationship between kinetic energy and an object's mass and square of its velocity is direct: K.E. = 1/2 m v2.

To calculate the kinetic energy of the pellet, solve the energy conservation equation using the necessary variables as substitutes.

KE = EPE

KE = 1/2 kx²

KE = 1/2(20N/m) (7cm ×1/100cm)²

KE = 4.9 × 10⁻²J.

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Answer:

False

Explanation:

Just took the test

False, because hypochondriacs think they have a significant, undetected medical ailment even when testing reveal they are healthy.

A hypochondriac is someone who, despite diagnostic testing showing they have no health issues, lives in constant anxiety that they have a terrible, undetected medical illness. They are obsessed with the concept that they suffer from a major illness that has gone untreated.

In adults, hypochondriasis often begins to manifest. Among the symptoms are a persistent, strong anxiety of developing a major illness and concern that seemingly little symptoms portend a larger problem. A patient may change physicians or see them regularly.

Medication and counselling could be helpful.

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In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.

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Answer:Pitch.

Explanation:The relative highness or lowness of sounds produced by the human voice is called pitch.

The relative highness or lowness of sounds produced by the human voice is called pitch. Humans have excellent relative pitch and can discriminate between different frequencies, allowing us to identify different musical notes.

The relative highness or lowness of sounds produced by the human voice is called pitch. Pitch is determined by the frequency of the sound waves produced. Humans have excellent relative pitch and can discriminate between different frequencies, allowing us to identify different musical notes.

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After the collision, the two-cart system's total momentum was 0.22 kg m/s in magnitude. The correct answer is A.

To find the magnitude of the total momentum of the two-cart system after the collision, we can use the principle of conservation of momentum. This principle says that the total momentum of a closed system, like the two carts in this case, stays the same unless an outside force changes it.

First, calculate the initial momentum of the first cart:

Then, calculate the initial momentum of the second cart:

After that, we need to calculate the total initial momentum:

Use the principle of conservation of momentum to calculate the final momentum:

So the magnitude of the total momentum of the two-cart system after the collision is 0.22 kg m/s.

This question isn't complete. Here's how it should be written and how answer choices should be given: 

A 0.500-kilogram cart traveling to the right on a horizontal, frictionless surface at 2.20 meters per second collides head on with a 0.800-kilogram cart moving to the left at 1.10 meters per second. What is the magnitude of the total momentum of the two-cart system after the collision?

The correct answer is A.

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Answer:

4.2 is the answer

Explanation

The image formed in a plane mirror is an equal distance behind the mirror as the object in front of it.

Step 1: the equation to this problem would be: 8.4/2

Step 2: 8.4 ÷ 2 = 4.2

Hope you could understand.

If you have any query, feel free to ask.

Explanation:

gas vibrate and moves freely at high speeds, liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place

hope it helps you

Given that,

Ice travel = 20.0 m

The direction is 25° W of N

Deflect distance = 30.0 m

The direction is 35° N of W

(I). When ice travel west of north

We need to calculate the displacement

Using formula of displacement of component

\(\vec{D}=d\cos\theta+d\sin\theta\)

Put the value into the formula

\(\vec{D}=20\cos25(j)+20\sin25(-i)\)

\(\vec{D}=18j-8.44i\)

(II). When ice deflect north of west

We need to calculate the displacement

Using formula of displacement of component

\(\vec{D'}=d\cos\theta+d\sin\theta\)

Put the value into the formula

\(\vec{D'}=30\cos35(-i)+30\sin35(j)\)

\(\vec{D'}=-24.3i+17.1j\)

We need to calculate the magnitude puck's total displacement

Using formula for total displacement

\(\vec{D''}=\vec{D}+\vec{D'}\)

Put the value into the formula

\(\vec{D''}=18j-8.44i-24.3i+17.1j\)

\(\vec{D''}=-32.74i+35.1j\)

\(|\vec{D''}|=\sqrt{(-32.74)^2+(35.1)^2}\)

\(D''=47.9\ m\)

Hence, The magnitude puck's total displacement is 47.9 m.

(ii). Given that,

He shoot the puck 25 m in east.

The displacement is

\(\vec{D}=25i+0j\)

A player is positioned 35 m at 40° West of south.

We need to calculate the displacement

Using formula of displacement

\(\vec{D'}=d\cos\theta(-i)+d\sin\theta(-j)\)

Put the value into the formula

\(\vec{D'}=35\cos40(-i)+35\sin40(-j)\)

\(\vec{D'}=-26.81i-22.49j\)

We need to calculate the total displacement

Using formula for total displacement

\(\vec{D''}=\vec{D}+\vec{D''}\)

Put the value into the formula

\(\vec{D''}=25i+0j-26.81i-22.49j\)

\(\vec{D''}=-1.81i-22.49j\)

The magnitude of the total displacement

\(|\vec{D''}|=\sqrt{(-1.81)^2+(-22.49)^2}\)

\(D''=22.56\ m\)

Hence, The magnitude of the total displacement is 22.56 m

The D. critical path is a series of events and activities with no slack time.

It is a path that defines the longest duration required to complete a project. It is significant in the project management methodology as it helps the project manager establish a timeline for the project while also identifying the activities that are most critical to the project's completion. If an activity on the critical path takes longer than anticipated, the whole project will be delayed, and if an activity is completed earlier than expected, then it might not be worth it to continue the project, and the client might not be willing to pay for it.

The critical path analysis allows managers to identify and control the critical factors that can impact a project's success, enabling them to focus on the most important areas and make informed decisions about the project. So the correct answer is D. critical path, is a series of events and activities with no slack time.

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Answer:

Its D Kr and Xe

Explanation:

Element from the same group have simmilar properties

If you now the atomic number ،its so easy to know how much electrons they have in outermost shell.

Answer:

D. Krypton and Xenon

Explanation:

Answer:

1. C

2. B

3. B

Explanation:

Took assignment on edge

The

The stationary mean not moving in this sentence. The correct option is A.

Potential energy in physics is the energy that an item retains as a result of its position in relation to other objects, internal tensions, electric charge, or other elements.

Any object that is raised from rest has energy that can be released at a later time; for this reason, it is referred to as potential energy.

The highest potential energy is present when a roller coaster is at rest at the summit of a slope. In this statement, the word stationary means immobile.

Thus, the correct option is A.

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The zone in the map that has the greatest amount of land area suitable for people to live is zone B.

The equator is the imaginary line that divides the earth horizontally into two equal halves of North and South zones.

The countries that are located close to the equator include the following:

Ecuador, Colombia,

From the map, the zone with the greatest amount of land area suitable for people to live is the zone closest to the equator which is zone B.

The temperature of these areas are close to moderate through out the year.

The zone B also contains land mass that is part of the largest continent which is Asia.

Therefore, the zone in the map that has the greatest amount of land area suitable for people to live is zone B.

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Answer:

net force is 5N

Explanation:

Fnet= ma

Fnet= (1)(5)

Fnet= 5N

Fnet is for net force

To find the direction of the force, point your thumb in the direction of the current (upward) and curl your fingers in the direction of Earth's magnetic field (from the north to the south pole). Your palm will be facing the direction of the force.
So, the force is directed from west to east.

The force that our planet's magnetic field exerts on the cord will be perpendicular to both the magnetic field and the direction of current flow. Since the current in the cord is running vertically upward, the force will be directed from east to west (option a) or from west to east, depending on the orientation of the magnetic field. However, since the question doesn't provide information on the orientation of the magnetic field, we cannot determine the exact direction of the force.
The force exerted on a current-carrying wire in a magnetic field can be determined using the right-hand rule. In this case, the current is running vertically upward.
Therefore, the force is directed from west to east.

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The correct answer is a) magnetic flux is maximum when the plane of the loop is parallel to the magnetic field. B) magnetic flux is zero, when the plane of the loop is perpendicular to the magnetic field.

What is uniform magnetic field?

The field lines must be both parallel and equally spaced in order for the region under examination to have a uniform magnetic field, which must have the same strength and direction throughout.

Hence the loop's plane is parallel to the magnetic field when the magnetic flux is at its highest (answer a). When the plane of the loop is parallel to the magnetic field, the magnetic flux is zero. (answer b)

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The probability of the electron to tunnel through the barrier is 26%.

The probability of an electron to tunnel through a barrier is given by the following equation:

P = e\(^(-2kd)\)

where P is the probability, k is the wave number, and d is the width of the barrier.

The wave number k is given by:

k = √(2m(E-V))/h

where m is the mass of the electron, E is the energy of the electron, V is the height of the barrier, and h is Planck's constant.

For an electron with energy 6.0 eV and a barrier height of 11.0 eV, we have:

k = √(29.11E-31(6.0-11.0)*1.6E-19)/6.63E-34

= 4.65E10 m\(^-1\)

(a) For a barrier width of 0.80 nm:

d = 0.80E-9 m

P = e\(^(-2kd)\)

= e\(^(-24.65E100.80E-9)\)

= 0.019 or 1.9%

Therefore, the probability of the electron to tunnel through the barrier is 1.9%.

(b) For a barrier width of 0.40 nm:

d = 0.40E-9 m

P = e\(^(-2kd)\)

= e\(^(-24.65E100.40E-9)\)

= 0.26 or 26%

Therefore, the probability of the electron to tunnel through the barrier is 26%.

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The potential energy of a 3 kg ball that is on the ground is zero.

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Answer:

see below

Explanation:

2 Hz, means 2 complete waves are produced in one second, so

2 waves ----- 1 second

2 x 60 -------1 x 60

120 waves ------60 seconds

hope this helps,

please mark it

Given:

Frequency= 2Hz

Number of waves = ?

= 120 waves

Therefore, the number of waves that will be formed in one minute is 120 waves

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Answer: Reasons are below <3

Explanation:

Reason 1. Some of the heavier elements in the periodic table are created when pairs of neutron stars collide cataclysmically and explode, researchers have shown for the first time.

Reason 2. Light elements like hydrogen and helium formed during the big bang, and those up to iron are made by fusion in the cores of stars.

Brainliest? <33

Answer:

D

Explanation:

Immersion oil increases the resolution in microscopy by increasing the refractive index between the specimen and the objective lens. The correct answer is B.

In microscopy, immersion oil is used to enhance the resolution of an image by reducing the amount of light that gets scattered or refracted as it passes through the air between the specimen and the objective lens. By increasing the refractive index, immersion oil allows more light to enter the lens, which results in a clearer and more detailed image.

The refractive index of the oil closely matches that of the glass used in the objective lens, ensuring that the light travels more directly from the specimen to the lens, thus improving the overall image resolution.

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In our solar system, distances are really great. Therefore, astronomers frequently avoid using miles or kilometers when describing the distances to planets, asteroids, comets, or spacecraft.

They substitute astronomical units, or AU, which represent the typical separation of the Earth from the sun. That translates to around 93 million miles, 150 million kilometers, or 8 light-minutes.

It is simpler to visualize relative distances in space when thinking in terms of astronomical units.  An astronomical unit is 92,955,807 miles in exact distance (149,597,871 km).

The orbit of the Earth around the sun is not a complete circle. Consequently, during the year, Earth's distance from the sun varies. Earth is approximately 0.983 AU from the sun when it is at perihelion, which occurs in January.

Therefore, In our solar system, distances are really great. Therefore, astronomers frequently avoid using miles or kilometers when describing the distances to planets, asteroids, comets, or spacecraft.

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All large telescopes are reflectors because large lenses are expensive to make and because large lenses sag under their own weight.

Telescopes are instruments used to observe celestial objects in the night sky. They work by collecting and focusing light, allowing astronomers to see distant stars, galaxies, planets, and other objects. Telescopes come in different types, including refracting telescopes, reflecting telescopes, and compound telescopes.

Compound telescopes, on the other hand, use a combination of lenses and mirrors. Telescopes have revolutionized our understanding of the universe by allowing us to study distant objects in great detail. They have helped us discover new planets, stars, galaxies, and even black holes. With the help of telescopes, astronomers have been able to make groundbreaking discoveries in the fields of astrophysics, cosmology, and planetary science, and they continue to be an essential tool in the study of the cosmos.

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Complete Question: -

Why are all large astronomical telescopes reflectors?