Explain an example of how energy is transferred from one form to another
you will get max points

Collapse, Condensation, Accretion lists are major steps of solar system formation in the correct order

The Sun and the planets formed together 4.6 billion years ago from a cloud of gas and dust known as the solar nebula. A shock wave from a neighboring supernova explosion most likely caused the solar nebula to collapse. The Sun formed in the center, and the planets formed in a thin disk around it.

Planets, including those in our solar system, are thought to form from dust the size of a human hair, according to scientists. They arise from the enormous ring of gas and dust that surrounds young stars. Gravity and other factors induce material within the disk to collide.

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Answer:

a) 60kg

Explanation:

mass is not affected by gravity

The mass of Joe on the moon is approximately 60 kg. Hence, option (a) is correct.

Given data:

The weight of Joe is, W = 600 N.

The weight of any object is the product of mass and gravitational acceleration of an object. It is the expressed as,

W = mg

Here,

m is the mass of Joe.

g is the gravitational acceleration.

Solving as,

W = mg

600 = m × 10

m = 60 kg.

Thus, we can conclude that the mass of Joe on the moon is approximately 60 kg. Hence, option (a) is correct.

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Answer:

Light waves- electromagnetic waves

water waves- combination of both longitudinal and transverse motions

sound waves- mechanical waves

They all oscillations that carry energy from one place to another.

Explanation:

hi

Similarities between light waves , water waves and sound waves:

Differences between light waves, water waves, and sound waves:

The medium may be a solid, a liquid, or a gas, and the speed of the wave depends on the material properties of the medium through which it is traveling.

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When the book is at the point where there is 4 J of gravitational potential energy in the system, the total amount of energy in the system will still be 5 J, since energy cannot be created or destroyed, only transformed from one form to another.

At this point, the energy in the system will consist of two forms: gravitational potential energy and kinetic energy. The 4 J of gravitational potential energy is due to the book's position relative to the floor, and is equal to the work done by gravity in lifting the book from the floor to its initial position on the table. As the book falls, this potential energy is converted into kinetic energy, which is the energy of motion. The kinetic energy of the book increases as it falls, until it reaches the floor, at which point all of the potential energy has been converted into kinetic energy.

Therefore, at the point where there is 4 J of gravitational potential energy in the system, the remaining 1 J of energy in the system will be in the form of kinetic energy.

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The complete question is:

Study the scenario. A book falls off a table and lands on the floor. The isolated system consists of the book and the floor, and ignores air resistance. The amount of energy in the system is 5 J when the book is sitting on the table. At some point during its fall, there is 4 J of gravitational potential energy in the system. Which choice best describes the amount and form of energy in this system when the book is at this point?

a) 5J

b) 4J

c) 9J

d) cant say

Answer:

Radio frequency energy. (Radiation)

Explanation:

the phone is getting hot due to large amount of used electricity. Geothermal energy is getting passed from the earth through the power lines from light and turns into electricity. this is what happens in a phone as well.

During the human ovarian cycle, ovulation is stimulated by d. an increase in LH (luteinizing hormone) secretion. This increase, known as the LH surge, triggers the release of a mature egg from the ovary, allowing for the possibility of fertilization.

During the human ovarian cycle, ovulation is stimulated by an increase in LH secretion. This surge in LH secretion causes the follicle to rupture and release the mature egg. It is important to note that FSH (follicle-stimulating hormone) plays a role in follicle development and estrogen production leading up to ovulation, but it is the surge in LH that triggers the actual release of the egg.

                                    Progesterone secretion increases after ovulation and helps prepare the uterus for potential implantation of a fertilized egg. Estradiol concentration fluctuates throughout the cycle, with high levels leading up to ovulation and lower levels after ovulation.

During the human ovarian cycle, ovulation is stimulated by d. an increase in LH (luteinizing hormone) secretion. This increase, known as the LH surge, triggers the release of a mature egg from the ovary, allowing for the possibility of fertilization.

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The length of the spring when a 1.75 kg block is hung would be 16.5 cm.

To solve this problem, we can use Hooke's law, which states that the force exerted by a spring is proportional to the spring's deformation.

First, we can calculate the spring constant (k) using the formula:

k = (F / x)

Where F is the force exerted by the block and x is the deformation of the spring (the difference in length between the compressed and unloaded states).

In the first case, the 2 kg block causes a deformation of 3 cm in the spring (18 cm - 15 cm). We can calculate k by dividing the weight of the block (2 kg) by the deformation (3 cm).

With the value of k known, we can calculate the length of the spring when the 1.75 kg block is hung. We use the same formula:

x = (F / k)

This time, the force exerted by the 1.75 kg block is calculated as the product of its mass (1.75 kg) and gravity (9.8 m/s²).

By substituting the values into the formula, we find that the length of the spring would be 16.5 cm when the 1.75 kg block is hung.

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Answer: The final Velocity, V, of the car is 7.9m/s

Explanation:

Given the following :

Toy car starts from rest, therefore,

Initial Velocity (u) = 0

Acceleration (a) = 1.5m/s^2 E for time, t = 5.25s

Final velocity (V) of the car =?

Using the motion equation:

v = u + at

Where v = final Velocity

u = Initial Velocity

a = acceleration

t = time

v = 0 + 1.5(5.25)

v = 0 + 7.875

v = 7.875m/s

v = 7.9m/s

Wendy riding her bike in a circle in the parking lot is a change in direction, but her speed is constant, so her velocity is not changing. Amber sitting on a park bench and Jessica walking her dog along Chestnut Avenue are both stationary, so there is no change in velocity.

What is Velocity?

It is defined as the change in position of an object over a unit of time, usually measured in meters per second (m/s) or kilometers per hour (km/h), in a specific direction.

In physics, velocity is distinguished from speed, which is the magnitude of an object's velocity but without regard to its direction. Velocity is a more precise term than speed because it includes both magnitude and direction. For example, a car traveling at 60 km/h east has a different velocity than a car traveling at 60 km/h west.

Velocity is a fundamental concept in many areas of physics, including mechanics, thermodynamics, and electromagnetism. It is used to describe the motion of objects ranging from subatomic particles to celestial bodies in the universe.

The only option that shows a change in velocity is Ken driving on Interstate 4 at 65 mph. This is because velocity is a vector quantity that includes both speed and direction. As Ken is driving, he is changing his direction or speed, or both, which means his velocity is changing.

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The work done by the pump to fill the tank is 10,483,200 foot-pounds.

Given the following data: Volume of the water tank = 1200 cubic feet

The discharge pipe is located 140 feet above the level in a lake

The pump is used to lift water from the lake to discharge the pipe

Work done is the force applied to an object and the distance through which that force is applied. It can be calculated using the formula,

Work done = force × distance

- Here, the force required is the weight of the water and distance is the height it is lifted.

Force = Weight = Density × Volume (where density of water = 62.4 lb/ft³)

Force = 62.4 × 1200 = 74,880 pounds

- Therefore, the work done by the pump to fill the tank is

Work done = force × distance

Work done = 74,880 × 140

Work done = 10,483,200 foot-pounds.

Therefore, the work done by the pump to fill water tank with a volume of 1200 cubic feet is 10,483,200 foot-pounds.

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Answer:

time taken t = 6.00 seconds

the time taken to cover half a round is 6.00 seconds

Explanation:

Given;

Speed of ant v = 11 m/s

radius of Circle r = 21 m

Circumference of a circle

c = 2πr

Half a turn d = c/2 = 2πr/2 = πr

Time taken to cover distance d( half a turn);

time = distance/speed = d/v = πr/v

Substituting the values;

time =(π×21)/11 = 5.997585975035 seconds

time taken t = 6.00 seconds

It takes 6 seconds for the ant to cover half a round.

Speed is the time rate of change of distance. It is given by:

Speed = distance / time

Since the radius of the circle is 21 m:

Distance covered for one round = 2π * radius = 2π(21) = 132 m

Distance covered for half round = 132 m/2 = 66 meter

Time taken to cover half a round:

Speed = distance/time

11 = 66/time

Time = 6 seconds

It takes 6 seconds to cover half a round.

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A bond involves the sharing of electron pairs between atoms, also known as a molecular bond.

The given statement is True.

A covalent bond is a chemical relationship that requires the sharing of electrons between atoms to generate electron pairs. These electron couples are known as bonding pairs or sharing pairs. Covalent bonding is the steady equilibrium of attractive and repulsive forces between atoms when they share electrons.

The number of atoms that can be bound together to create molecules is fixed; for example, every water molecule has two hydrogen atoms and one oxygen atom. Chemical compounds are distinguished from solutions and other mechanical mixes by this property.

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To repeat the same sound clip one after another, the method used is to concatenate the sound sample arrays. By concatenating the sound sample arrays, you create a new array that contains multiple copies of the original sound clip, effectively repeating it one after another. Therefore the correct option is b. Multiply the sound sample arrays by a scalar value less than 1.

When you want to repeat the same sound clip, one after another, you can achieve this by concatenating the sound sample arrays. Here's a step-by-step explanation:

1. Load the sound clip into MATLAB and convert it into a sound sample array.

2. Determine the number of times you want to repeat the sound clip.

3. Use the concatenation operator `[ ]` to join the sound sample arrays together.

4. Repeat the sound sample array as many times as desired by appending it to itself using the concatenation operator. For example, if you want to repeat the sound clip three times, you would write `[soundClip, soundClip, soundClip]`.

5. Store the concatenated sound sample array in a new variable.

6. If needed, you can then play the repeated sound clip using the `sound()` function in MATLAB.

By concatenating the sound sample arrays, you create a new array that contains multiple copies of the original sound clip, effectively repeating it one after another.

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Explanation:

it's mean hI small little cute baby girl ...

The velocity of an object that has been falling freely in a vacuum

for 4 seconds is 39.2 m/s.

The given parameters;

The value acceleration due to gravity in vacuum is approximately 9.8 m/s².

The final velocity of the object is calculated as follows;

v = u + gt

where;

Substitute the given parameters and solve for v;

v = 0 + 9.8(4)

v = 39.2 m/s

Thus, the velocity of an object that has been falling freely in a vacuum

for 4 seconds is 39.2 m/s.

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When a hot macroscopic object is in contact with a cold macroscopic object, thermal energy exchange happens.

The specific heat capacity of the materials involved and the temperature difference between the objects will determine the rate at which the heat is transferred.

An equivalent example of this is a hot cup of tea or coffee that gets cold after some time.

In this case, the hot cup of tea or coffee is the hot macroscopic object while the cold surrounding air or table is the cold macroscopic object.

In the situation where a hot macroscopic object is in contact with a cold macroscopic object, the temperature of the hot object will decrease while the temperature of the cold object increases. This is because energy transfers from the hotter object to the colder object until they both reach thermal equilibrium (a state of no net heat flow).

The specific heat capacity of the materials involved and the temperature difference between the objects will determine the rate at which the heat is transferred.

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Answer:

77ruririfusjd u 6r7r u y9r8

The velocity of the roller coaster at the top of the second hill is 24.25 m/s.

Velocity is the rate of change of displacement. The s.i unit is m/s

To calculate the velocity of the coaster car, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Solve for v

Hence, The velocity of the roller coaster at the top of the second hill is 24.25 m/s.

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Answer: the divergent one goes where it looks like there a crack because when you think about divergent it means dividing like seperating.(igneous rock) is where the divegent one goes.

the one that is no plate boundary is sedimentary rock and it occurs by because there is nothing there for it todo there

Explanation:

Answer:

This question appear incomplete

Explanation:

This question appear incomplete because there is no list of closest correct answer there. Although can still be well attempted.

The formula to be used here is

average speed = distance ÷ time

The unit of speed here would be meters per second (m/s). However, some of the lines do not really fall on a measurable line on the graph and can only be "best assumed".

A: distance is 1600 meters

time appear to be 4 seconds (definitely less than 5 seconds according to the graph).

speed = 1600 ÷ 4

speed = 400 m/s

B: distance is 1600 meters

time appear to be 18 seconds (definitely less than 20 seconds according to the graph)

speed = 1600 ÷ 18

speed = 88.89 m/s

C: distance is 1600 meters

time is 65 seconds

speed = 1600 ÷ 65

speed = 24.62 m/s

D:  distance is 1600 meters

time is 105 seconds

speed = 1600 ÷ 105

speed = 15.24 m/s

E: distance is 1100 meters

time is 120 seconds

speed = 1100 ÷ 120

speed = 9.17 m/s

F: distance is 500 meters

time is 120 seconds

speed = 500 ÷ 120

speed = 4.17 m/s

G: distance appear to be 250 meters

time is 120 seconds

speed = 250 ÷ 120

speed = 2.08 m/s

H: distance appear to be 50 meters

time is 120 seconds

speed = 50 ÷ 120

speed = 0.42 m/s

The average speed for each object are:

1. The average speed of A is 400 m/s

2. The average speed of B is 88.89 m/s

3. The average speed of C is 24.62 m/s

4. The average speed of D is 15.24 m/s

5. The average speed of E is 9.17 m/s

6. The average speed of F is 4.17 m/s

7. The average speed of G is 2.08 m/s

8. The average speed of H is 0.33 m/s

Average speed is defined as the total distance travelled divided by the total time taken to cover the distance.

With the above formula, we can obtain the average speed for each object as follow:

1. Determination of average speed of A

Total distance = 1600

Total time = 4 s

Average speed = 1600 / 4

2. Determination of average speed of B

Total distance = 1600

Total time = 18 s

Average speed = 1600 / 18

3. Determination of average speed of C

Total distance = 1600

Total time = 65 s

Average speed = 1600 / 65

4. Determination of average speed of D

Total distance = 1600

Total time = 105 s

Average speed = 1600 / 105

5. Determination of average speed of E

Total distance = 1100

Total time = 120 s

Average speed = 1100 / 120

6. Determination of average speed of F

Total distance = 500

Total time = 120 s

Average speed = 500 / 120

7. Determination of average speed of G

Total distance = 250

Total time = 120 s

Average speed = 250 / 120

8. Determination of average speed of H

Total distance = 40

Total time = 120 s

Average speed = 40 / 120

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The velocity of the third piece is mathematically given as

v=0.88m/s

Generally, the equation for conservation is  mathematically given as

\(m u=m_{1} v_{1 \mathrm{x}}+m_{2} v_{2 \mathrm{x}}+m_{1} v_{x}\)

Here, is the mass of the grenade, \(m_{1}, m_{2}, m_{3}\) the masses of the pieces after an explosion, and \(v_{1 \mathrm{x}}, v_{2 \mathrm{x}}\) are velocities of the first and second pieces after the explosion.

\(m u_{1} &=m_{1} v_{1 x}+m_{2} v_{2 \mathrm{x}}+m_{3} v_{x} \\0 &=0+(0.2 \mathrm{~kg})((5 \mathrm{~m} / \mathrm{s})\\v_{x} &=\frac{-0.173 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s}}{0.3 \mathrm{~kg}} \\&=-0.578 \mathrm{~m} / \mathrm{s}\)

the equation for conservation

\(m u=m_{1} v_{1 y}+m_{2} v_{2 y}+m_{3} v_{y}\)

\(m u_{1} &=m_{1} v_{1 \mathrm{y}}+m_{2} v_{x y}+m_{3} v_{y} \\0 &=(0.10 \mathrm{~kg})(10 \mathrm{~m} / \mathrm{s})+(0.2 \mathrm{~kg})\left((5 \mathrm{~m} / \mathrm{s}) \cos 10^{\circ}\right)+(0.3 \mathrm{~kg}) v_{y} \\v_{y} &=\frac{-1.98 \mathrm{~kg} \cdot \mathrm{m} / \mathrm{s}}{0.3 \mathrm{~kg}} \\&=-0.661 \mathrm{~m} / \mathrm{s}\)

In conclusion, the magnitude of the velocity

\(v=\sqrt{v_{\mathrm{x}}^{2}+v_{\mathrm{y}}^{2}}\)

\(Substitute $-0.578 \mathrm{~m} / \mathrm{s}$ for $v_{\mathrm{s}}$ and $-0.661 \mathrm{~m} / \mathrm{s}$ for $v_{\mathrm{y}}$\)

\(v &=\sqrt{v_{x}^{2}+v_{y}^{2}} \\&=\sqrt{(-0.578 \mathrm{~m} / \mathrm{s})^{2}+(-0.661 \mathrm{~m} / \mathrm{s})^{2}} \\&=0.88 \mathrm{~m} / \mathrm{s}\)

v=0.88m/s

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A front is a narrow zone of transition between air masses that contrast in temperature, vapor pressure, and density.

This contrast in density is particularly important, as it causes the air masses to behave differently, leading to changes in weather conditions. When denser cold air meets warmer, less dense air, it causes the warm air to rise and creates instability in the atmosphere, often resulting in the formation of clouds and precipitation. On the other hand, when less dense warm air meets denser cold air, it is forced to rise above the denser air, creating a stable atmosphere with little to no cloud formation. Understanding the density of air masses is crucial in predicting the behavior of weather systems, as it can provide insight into the likelihood of precipitation and other weather events. But I hope it provides a thorough explanation.

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Answer:

Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields.

Explanation:

Answer: No doesn’t require any special training.

Explanation:

The construction of a scientific question doesn’t require any special training, Coming up with a scientific questions isn't supposed to be difficult and doesn't require training as a scientist.

If you've ever been curious about something, if you've ever wondered or want to know what caused something to happen, this are examples of scientific questions as they are usually driven by curiosity to know more.

Answer:

C

Explanation:

The lungs and heart are organs

Answer:

.

Explanation:

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