6. What are 3 different evidences of evolution? How is each form used to provide evidence of evolution?
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Answer:

Z

Explanation:

The figure represented the ray diagrams produced by a convex (converging lens). The image will appear at the point where the purple ray and the orange ray meet, so at point Z.

As we see from the picture, the image will be:

- Real (because it is behind the lens, and it can be projected on a screen)

- Inverted (the image is upside down)

- Larger than the object (we can see it by noticing that the distance between the point of intersection purple-orange ray and the axis is larger than the size of the object)

Answer:

Its X

Explanation:

Answer:

Many tree seedlings crowd the open space and attempt to grow in the sunlight.

Answer:

A

Explanation:

Many tree seedlings crowd the open space and attempt to grown in the sunlight.

Answer:

going to work my way down

Troposphere

contains weather

contains life forms

stratosphere

contains ozone layer

mesosphere

where asteroids burn up

very low temps

thermosphere

widely varying temps

exosphere

almost no molecules

Explanation:

Answer:

Hope this helps!!

ur answer is A or also known as

When you push a child on a swing, you are doing work on the child because  you are pushing against the force of gravity

hope this helps :)

Thinking it’s A! Sorry if I’m wrong! :)

Answer:

14108 J

Explanation:

The heat that has to be removed from the water is given by

[tex]Q=m C_s \Delta T[/tex]

where

m = 225 g is the water mass

[tex]C_s = 4.18 J/gC[/tex] is the specific heat capacity of the water

[tex]\Delta T=10.0 C-25.0 C=-15.0 C[/tex] is the charge in temperature of the water

Substituting into the equation, we find

[tex]Q=(225 g) (4.18 J/gC) (-15.0 C)=-14,108 J[/tex]

and the negative sign means the heat is removed from the system.

Answer: Gamma rays

Explanation:

Answer:

Gamma rays are the most powerful

GAMMA RAYS

Gamma-rays are a form of electromagnetic radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves. Gamma-rays can be used to treat cancer, and gamma-ray bursts are studied by astronomers.

Electromagnetic (EM) radiation is transmitted in waves or particles at different wavelengths and frequencies. This broad range of wavelengths is known as the electromagnetic spectrum. The spectrum is generally divided into seven regions in order of decreasing wavelength and increasing energy and frequency. The common designations are radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays.

Gamma-rays fall in the range of the EM spectrum above soft X-rays. Gamma-rays have frequencies greater than about 1,018 cycles per second, or hertz (Hz), and wavelengths of less than 100 picometers (pm), or 4 x 10^9 inches. (A picometer is one-trillionth of a meter.)

Gamma-rays and hard X-rays overlap in the EM spectrum, which can make it hard to differentiate them. In some fields, such as astrophysics, an arbitrary line is drawn in the spectrum where rays above a certain wavelength are classified as X-rays and rays with shorter wavelengths are classified as gamma-rays. Both gamma-rays and X-rays have enough energy to cause damage to living tissue, but almost all cosmic gamma-rays are blocked by Earth's atmosphere.

Answer: C

Explanation:

Calculate EkA -kinetic energy of car A

m=1000kg

Va=16.66 m/s

EkA=m*Va²/2

Eka=(1000kg*277.556m²/s²)/2

Eka=138 777.8 J

Calculate kinetic energy of CarB:

m=2000 kg

Vb=8.33 m/s

Ekb=(m*Vb²)/2

Ekb=(2000kg*69.39m²/s²)/2

Ekb=69 388.9 J

compare Eka with EkB

Eka/Ekb=138 777.8 J/69 388.9

Eka/Ekb=2

The kinetic energy of car A is twice as much as that of car B. This is calculated using the formula for kinetic energy, which is 1/2 * mass * (velocity)^2.

To compare the kinetic energy of car A with that of car B, we first need to understand the mathematical formula for kinetic energy, which is 1/2 * mass * (velocity)^2.

Let's calculate for each car:

Therefore, car A has twice as much kinetic energy as car B.

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Answer:

A falling object will continue to accelerate to higher speeds until they encounter an amount of air resistance that is equal to their weight.

Explanation:

Answer:

so its basically termonal velocity

Explanation:

1) Mass is a measure of how much stuff there is. Weight is a measure of the gravitational force on mass

2) It means "a change in..."

Hope this helps :)

Answer:

600Hz

Explanation:

In electrical systems of alternating current, the harmonics are, as in acoustics, frequencies multiples of the fundamental working frequency of the system and whose amplitude decreases as the multiple increases. For example, if we have systems fed by the 50 Hz network, harmonics of 100, 150, 200, etc. may appear.

In our case having a fundamental wave of 100Hz, I can have harmonics of 200,300,400, ..., 600Hz

Hello There!

It's a Property of matter where atoms in an object are aligned into domains

Answer:

If the force remains the same, the acceleration would decrease

Explanation:

According to Newton's second law, the acceleration of an object is given by

[tex]a=\frac{F}{m}[/tex]

where

F is the force applied to the object

m is the mass of the object

As we see from the formula, the acceleration a is inversely proportional to the mass, m. Therefore, if the force F remains constant, this means that if the mass of the skateboarder increases, then the acceleration will decrease.

Answer: His acceleration would decrease

Explanation:

Answer:

Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object.

Explanation:

Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.

Final answer:

Mass is a measure of the amount of matter an object contains and is constant regardless of location, while weight is the gravitational force acting on an object's mass and varies with location. The statement that mass measures weight is false.

Explanation:

Understanding Mass and Weight

The statement 'Mass is a measure of weight' is false. Mass is a measure of the amount of matter an object contains and is independent of its location. It is typically measured in kilograms. Weight, in contrast, is a measure of the force of gravity acting on an object, which can vary depending on where the object is in the universe. Weight is equal to the mass of an object multiplied by the local acceleration due to gravity, and it is measured in newtons or pounds.

Common misconceptions often stem from the interchangeable use of mass and weight in everyday language. However, it's important to recognize that mass is a scalar quantity, which does not change with location, while weight is a vector quantity that does change depending on the gravitational pull at a given location.

For instance, an individual's mass remains consistent whether they are on Earth, the moon, or floating in space, but their weight would differ significantly in each of these locations due to varying gravitational forces.

Answer:

C

Explanation:

A good trend line does not connect all the data points (dot-to-dot) but is a best-fit line that represents the overall pattern of the data and can be used for making predictions.

The question asks which of the listed options a good trend line does NOT do. The correct answer is C.) connects all the data points (dot-to-dot). A good trend line is a best-fit line that balances the number of points above and below it, representing the overall pattern of the data points without necessarily passing through all of them. It is used to approximate the average of those points and can be used to make predictions about the data. Connecting all the data points directly, or dot-to-dot, is not a characteristic of a good trend line, as it fails to represent the general trend or pattern in the data accurately.

Answer:

3.2 × 10⁻⁸ N.

Explanation:

By Coulomb's Law, the magnitude of the electromagnetic force between two point charges is inversely proportional to the square of their separation, [tex]r[/tex]. In other words,

[tex]\displaystyle \frac{F_1}{F_2} = {\left(\frac{r_2}{r_1}\right)}^{2}[/tex].

Final electromagnetic force:

[tex]\displaystyle F_2 = F_1 \cdot \left(\frac{r_2}{r_1}\right)^{2} = 8\times 10^{-9}\times \left( \frac{20}{10}\right)^{2} = 3.2\times 10^{-8}\;\text{N}[/tex].

Answer:immediately

Explanation:

I think its like four words put together

Answer:

Constant speed.

Explanation:

Because when the speed of an object remains the same - it does not increase or decrease - we say it is moving at a constant speed.

Hope I helped :)

Final answer:

Speed that does not change is referred to as constant speed or uniform speed. It is a scalar quantity, indicating magnitude only, and uniform motion involves maintaining the same velocity, including both speed and direction.

Explanation:

Speed that does not change is referred to as constant speed or uniform speed. When an object is moving at constant speed, it covers equal distances in equal intervals of time regardless of the direction of motion. Speed, being a scalar quantity, is only concerned with magnitude, not the direction of the travel.

Motion at a constant velocity, or uniform motion, means that the position of the object is changing at the same rate over time, and this typically indicates that there are no changes in speed and direction – the velocity is consistent. However, when referring specifically to speed without direction, constant or uniform speed can occur even if the direction changes.

Answer:

6.922 × 10¹⁰ J.

Explanation:

The satellite is much smaller than the earth and can be treated as a point mass.

Consider the equation for the gravitational potential energy of a point mass at a certain distance away from the center of a spherical mass:

[tex]\displaystyle \text{GPE} = -\frac{G \cdot M \cdot m}{r}[/tex],

where

As a side note, the GPE here is the same as the work that an external force will do when it brings the point mass from infinitely far away to the current point in space. Gravity pulls the object inwards; the external force acts against gravity in the opposite direction of travel. Energy will be released. The work of the external force will be negative. Hence, the value of GPE shall be either zero (at infinitely far away) or negative.

Convert all values to SI units:

Initial GPE of the satellite:

[tex]\displaystyle \begin{aligned}\text{GPE(Initial)} &= -\frac{G \cdot M \cdot m}{r_{\text{Initial}}}\\ &=-\frac{(6.67\times 10^{-11})\times (5.972\times 10^{24})\times (2.000\times 10^{3})}{6.400\times 10^{6}} \\ &= -1.245\times 10^{11}\;\text{J}\end{aligned}[/tex].

Final GPE of the satellite:

[tex]\displaystyle \begin{aligned}\text{GPE(Final)} &= -\frac{G \cdot M \cdot m}{r_{\text{Final}}}\\ &=-\frac{(6.67\times 10^{-11})\times (5.972\times 10^{24})\times (2.000\times 10^{3})}{7.200\times 10^{6}} \\ &= -1.106\times 10^{11}\;\text{J}\end{aligned}[/tex].

Gravity is the only force that act on the satellite. The velocity [tex]v[/tex] of the satellite in this orbit depends on the size of the net force on the satellite, which is the same as gravity on the satellite. In other words,

[tex]\displaystyle \frac{m\cdot v^{2}}{r} = \Sigma F = W = \frac{G\cdot M\cdot m}{r^{2}}[/tex],

where again, [tex]r = 6400 + 800 = 7200\;\text{km} = 7.200\times 10^{6}\;\text{m}[/tex].

Rearranging gives:

[tex]\displaystyle v^{2} = \frac{G\cdot M}{r}[/tex],

[tex]\displaystyle \begin{aligned} v &= \sqrt{\frac{G\cdot M}{r}} \\ &= \sqrt{\frac{(6.67\times 10^{-11})\times (5.972\times 10^{24})}{7.200 \times 10^{6}}} \\ &= 7.438\times 10^{3}\;\text{m}\cdot \text{s}^{-1}\end{aligned}[/tex].

As a result,

[tex]\displaystyle \text{KE} = \frac{1}{2}\; m \cdot v^{2} = \frac{1}{2} \times (2.000\times 10^{3}) \times (7.438\times 10^{3}) = 5.532\times 10^{10} \;\text{J}[/tex].

Assume no energy loss while lifting the satellite into the space. The energy required will be the same as the change in GPE plus the change in KE (Final minus Initial, keep any negative sign.)

[tex]\begin{aligned} \text{Energy Required} &= (\text{Final GPE} - \text{Initial GPE}) + (\text{Final KE} - \text{Initial KE})\\ &=((-1.106\times 10^{11}) - (-1.245\times 10^{11})) + ((5.532\times 10^{10} \;\text{J})) \\&=6.922 \times 10^{10}\;\text{J}\end{aligned}[/tex].

The most likely names of the plant groups are seed producers and spore producers, corresponding to gymnosperms and angiosperms. These categories reflect the major divisions of vascular plants based on their reproductive strategies, with gymnosperms producing seeds in cones and angiosperms producing seeds in flowers.

The most likely names of the groups into which a scientist classifies some plants are seed producers and spore producers. This categorization aligns with the major division of plants into nonvascular and vascular plants, where vascular plants are further divided into seedless and seed plants. Seed plants are subsequently categorized into gymnosperms, which produce seeds in cones and include conifers, and angiosperms, which produce seeds in the ovaries of flowers and include a wide range of flowering plants.

Gymnosperms, like pines, firs, and spruces, are characterized by their needle-like leaves and cone production, whereas angiosperms encompass a broad variety of plants including broadleaved trees, vegetables, grasses, and floral species admired for their blossoms. The distinction between these two groups lies in their reproductive strategies—the presence of cones in gymnosperms and the production of flowers and encased seeds in angiosperms.

Answer:

False.

Explanation:

Isolated magnetic poles or magnetic monopoles cannot be found in nature.

Request: Please mark me the Brainliest.

Hydrogen is a nonmetal.

At normal room temperature, hydrogen is a gas.

Hope this helps have a noice day

MAY GOD BLESS YOU!!!

Answer:

[tex]\large \boxed{\mathrm{gas}}[/tex]

Explanation:

Hydrogen is a gas at room temperature. Hydrogen has a molecular formula of [tex]\sf H_2[/tex].

Answer:(C) is your answer

Explanation: when you swing something back and forth it will eveuntally stopbecause it needs some type of external enegy source or basiclly a push.

I really hope this helps you out if you ever need anything else just friend me or email me :) a brainlist would be greatly appreciated :)

The pendulum bob swings back and forth, but eventually, it stops because there cannot be continued motion without an external energy source. The correct option is C).

The pendulum is a body that is suspended from a fixed point and moves back and forth as a result of gravity. Pendulums are employed to control clock movement because the period—the amount of time between each full oscillation—is constant.

Something that is being swung back and forth eventually comes to a stop because it requires an external energy source, or more simply, a push.

A pendulum is a straightforward illustration of energy transfer since it repeatedly transforms potential energy into kinetic energy until it comes to rest due to the minimal amount of energy lost to heat and air resistance.

Therefore, the correct option is C) There cannot be continued motion without an external energy source.

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Answer:

the answer is B

Explanation:

The mass and weight of that object on Mars is .The correct option is

B.

The object experiencing an attraction force towards the another body when placed still on any planet.
The mass of an object is constant on any planet.

Mass of the object on earth = mass of the object on mars = 71kg

The weight is the product of the mass and its acceleration due to gravity.

W=m x g

The acceleration due to gravity on Earth is 10m/s², then the acceleration due to  gravity on Mars is

0.38 x 10 = 3.8m/s²

The weight of that object on Mars is

W =71 x 3.8

W = 269.8 Newtons

The weight is approximately 270 N.

Thus, The mass and weight of that object on Mars is 71 kg and 270 N. The correct option is B.

Learn more about force on gravity.

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Answer:

The energy becomes 4 times greater.

Explanation:

We know that the energy of a wave is proportional to the square of its amplitude

E ∝ Amplitude^2

Since the original amplitude = 0.5 m

and the new amplitude becomes = 1 m

We are doubling the amplitude. This means that the new energy will be affected by a factor of 4

E_new  ∝ (2*Amplitude)^2  =

E_new ∝ 4*(Amplitude)^2  

E_new  = 4*E

These images indicate that different kinds of electromagnetic radiation can be used to detect various types of stars. (C)

Choices 'A' and 'B' are absurd.  "Important" is a wishy-washy, rubber word.  It means different things to different people, and it can even mean different things to the same astronomer at different times, depending on what he's trying to see at that moment.

Answer:

All the light rays are reflected into the same direction

Explanation:

Reflection occurs when a light ray hits a surface and bounces back at a certain angle.

The law of reflection states that:

- The angle of incidence, the angle of reflection and the normal to the surface all lie in the same plane

- The angle of reflection is equal to the angle of incidence

(where the angle of incidence is the angle between the incident ray and the normal to the surface, while the angle of reflection is the angle between the reflected ray and the normal to the surface)

We have two cases:

- if the surface is completely smooth (such as the Mirror lake), then all the light rays coming from same direction have same angle of incidence, so they are reflected into the same direction, allowing to see a clear image of the object above --> in this case we talk about specular reflection

- if the surface is not 100% smooth, then the light rays coming from same direction do not hit the surface at same angle of incidence, therefore they are reflected into different directions, and it is not possible to observe a clear image of the object above --> in this case we talk about diffuse reflection

Answer:

[tex]2.5\cdot 10^{-5}N[/tex]

Explanation:

The force per unit length between two current-carrying wires is given by:

[tex]\frac{F}{L}=\frac{\mu_0 I_1 I_2}{2\pi r}[/tex]

where

[tex]\mu_0[/tex] is the vacuum permeability

[tex]I_1, I_2[/tex] are the two currents

r is the separation between the wires

In this problem, we have

[tex]I_1 =3.55 A[/tex] is the current in the first wire

[tex]I_2 = 2.75 A[/tex] is the current in the second wire

[tex]r=78 mm=0.078 m[/tex] is the separation between the wires

Substituting into the equation, we find

[tex]\frac{F}{L}=\frac{(4\pi \cdot 10^{-7} H/m)(3.55 A)(2.75 A)}{2\pi (0.078 m)}=2.5\cdot 10^{-5}N[/tex]

Answer:

the object of mass 20kg

Explanation:

because the force=massxacceleration

and there is a direct relation between force and mass so the more the mass of the object the greater force it will need to accelerate for example if you tried to push a bike it will be easier than trying to push a truck because of the difference between their masses as the objects of less masses require less forces to move

The answer is:

The kinetic energy of the object is equal to 85 J.

The kinetic energy involves the speed and the mass of an object in motion. We can calculate the following the work needed to speed an object (kinetic energy) using the equation:

[tex]KineticEnergy=\frac{1}{2}mv^{2}[/tex]

Where,

m, is the mas of the object

v, is the speed of the object.

Now, we are given:

[tex]mass=m=6.8kg\\speed=v=5\frac{m}{s}[/tex]

So, substituting and calculating the kinetic energy of the object, we have:

[tex]KineticEnergy=\frac{1}{2}*6.8kg*(5\frac{m}{s})^{2}[/tex]

[tex]KineticEnergy=\frac{1}{2}*6.8kg*(25\frac{m^{2}}{s^{2}})[/tex]

[tex]KineticEnergy=\frac{1}{2}*170kg\frac{m^{2}}{s^{2}}[/tex]

[tex]KineticEnergy=85kg\frac{m^{2}}{s^{2}}=85J[/tex]

We have that the kinetic energy of the object is equal to 85 J.

Have a nice day!

Answer:

its 85j

Explanation:

just took the test

Answer:

c

Explanation:

Mineral water, water, and salt water are all liquid solutions, while oxygen is a gas. Gases are less dense than liquids.