what is the real reason we have different moon phases?

Option C is correct. Frequency can be found by counting the number of troughs per second in a wave diagram.

Frequency is defined as the number of repetitions of waves occurring in 1 second. It can also be said that Frequency is defined as the number of cycles completed in 1 second.

Frequency is given by the formula as,

\(\rm f=\frac{1}{t}\) Hz.

Hence option C is correct. Frequency can be found by counting the number of troughs per second in a wave diagram.

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Answer:

C is correct

Explanation:

Answer:

the wheels on a bike

Explanation:

do you go to k-12 if you do can you help me please have a good night/day :) ❤

Answer:

I hope it helps.

The flow velocity of the river is 2 mts/hour.

To solve the problem, we can use the formula:

v = d / t

Where,

v = the velocity of the river

d = the distance traveled by the log in the same time interval t as the boat.

Let's say the speed of the boat with respect to the water vb. [assume the speed of the boat with respect to the water is constant throughout the entire trip]

Assume, vb = 3 mts/hour.

The distance traveled by the boat upstream is 1.52 km + (91 min x 60 sec/min) x vb. The distance traveled by the log is 2 x 1.52 km. The time elapsed for the entire trip is 2 x 91 min x 60 sec/min.

So, v = (2 x 1.52 km) / (2 x 91 min x 60 sec/min)

Finally, v = vb - v.

Substituting the known values, we get:

v = vb - (2 x 1.52 km) / (2 x 91 min x 60 sec/min)

v = 3 - 1.00

v = 2 mts/hour

The velocity of the river is 2 mts/hour.

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The corresponding distance traveled by the orbiter is 1,728.05 feet. Given that the deceleration in feet per second squared during the time that the chute is deployed is −0.0003v2 (speed v in feet per second), the corresponding distance traveled by the orbiter can be found using the equation below;

The equation is:ds=∫v₁ᵛ₂dt Let's put in the values we have;v₁ = 200 mi/hr = 200 * 1.467 = 293.4 ft/s, v₂ = 35 mi/hr = 35 * 1.467 = 51.345 ft/s

∫ds= ∫v₁ᵛ₂ dt = ∫v₁ᵛ₂ (-dv/0.0003v²) = [-1/0.0003 ∫(1/v²)dv] from v₁ to v₂= [-1/0.0003 (-1/v)] from v₁ to v₂ = [1/0.0003 (1/v₁ - 1/v₂)]

The distance covered by the shuttle during the time that the chute is deployed is given by 1/0.0003 (1/v₁ - 1/v₂).∴ d = 1/0.0003 (1/293.4 - 1/51.345) = 1,728.05 feet. Therefore, the corresponding distance traveled by the orbiter is 1,728.05 feet.

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Thermodynamics can be said to be a branch of Physics which involves the transfer of heat and other energy forms.

Thermal energy is the energy possesed by a system due to its temperature.

In thermodynamics, during the transfer of thermal energy, energy is wasted due to entryopy. And entropy is the measure of disorder of a system.

Therefore, in amy thermodynamic system that deals with the transfer of thermal energy, the most ideal state for that system is Entropy

ANSWER:

A. Entropy

Answer:

It is flammable.

Explanation:

Answer:

5.15 when the angle of incidence is equal to critical angle the angle of reflection is equal to 90 if the angle of incidence is bigger than the critical anger the reflected ray will not emerge from the medium but will be reflected back into the medium this is called total internet reflection

Explanation:

hope it's helpful

The magnitude of the second force acting on the 24 kg mass in the positive x direction is 611 N.

To solve this problem, we need to use Newton's Second Law of Motion, which states that the net force acting on an object is equal to the product of its mass and acceleration. We are given the mass of the object (24 kg) and its acceleration (28 m/s in the positive x direction), and we need to determine the magnitude of the second force acting on it.

Let F₁ be the magnitude of the force acting in the negative y direction and F₂ be the magnitude of the second force acting on the object in the positive x direction. The net force acting on the object can be represented as the vector sum of these two forces:

F = √(F₁² + F₂²)

We know that F = m * a, where m is the mass of the object and a is its acceleration.

Substituting the given values, we get:

F = 24 kg * 28 m/s = 672 N

Squaring both sides and substituting F, we get:

F₁² + F₂² = (672 N)²

Substituting the value of F₁ (260 N) and solving for F₂, we get:

F₂ = √((672 N)² - (260 N)²) = 611 N

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You would weigh 118.6 N. The result is obtained using the formula for acceleration due to gravity.

The acceleration due to gravity can be counted by the following formula.

g = F/m = GM/R²

Where

You weigh 610 N. Find your weight if the earth's mass were seven times and its radius were six times its present value!

Let's say

The ratio of the accelerations due to gravity is

g₁/g₂ = (GM₁/R₁²)/(GM₂/R₂²)

g₁/g₂ = (M₁/R₁²)/(7M₁/(6R₁)²)

g₁/g₂ = (M₁/R₁²)/(7M₁/36R₁²)

g₁/g₂ = (36M₁R₁²)/(7M₁R₁²)

g₁/g₂ = 36/7

Your weight now would be

m = W/g

W₁/g₁ = W₂/g₂

610/36 = W₂/7

W₂ = (610×7)/36

W₂ = 118.6 N

Hence, your weight would be 118.6 N on the new earth.

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Answer:

Greenhouse gases include carbon dioxide, methane, nitrous oxide and other gases that accumulate in the atmosphere and create the heat-reflective layer that keeps the Earth at a livable temperature. These gases form the insulation that keeps the planet warm enough to support life.

1.9 kg*m/s

As we know that momentum is directly proportional to Mass and Velocity

Momentum= k*M*V

where k is the proportional constant, which is equal to 1 in this case.

(M*V). And by now if we talk about Unit then Mass has SI Unit as Kg. and Velocity have as m/s

I option 1 we unit as m/s  which simply shows the unit of Velocity. whereas option 2 is 2.4 kg/m which is not true as we already calculated as it must be kgm/s similarly in the case of option 3 2kg/s which again is not exactly the same SI unit of what we calculated before using equating the equation.

we can calculate the Kinetic energy by multiplying moment by Velocity and dividing 2.

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When a person with normal vision looks at an object 10m away, the image is formed clearly on the retina. The reason is that the eye has an optical power of 60 diopters. Therefore, a person with normal vision can see an object 10 meters away clearly.

Optical power refers to the ability of a lens to bend light. It is measured in diopters (D). The greater the diopter, the greater the lens's ability to bend light. The human eye's lens and cornea both contribute to its optical power.The cornea contributes around 43 diopters, while the lens contributes the remaining 17 diopters. The human eye's total optical power is usually about 60 diopters.A person with normal vision has an optical power of 60 diopters. When they look at an object 10m away, the image is formed clearly on the retina. The reason is that the eye has an optical power of 60 diopters.

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Answer:

. The branch of medical science called PHYSIOLOGY considers the functions of anatomical parts, whereas ANATOMY describes the form and organization of body parts.

Explanation:

THIS is because Anatomy the branch of life studyconcerned with the study of the structure of organisms and their parts

Whilw physiology studies the functioning of these parts

The branch of medical science that considers the functions of anatomical parts is called physiology, whereas anatomy describes the form and organization of body parts.

Physiology is the study of how body parts function and work together to maintain life processes and perform specific tasks. It focuses on the mechanisms and processes that underlie bodily functions, such as digestion, circulation, and muscle contraction.

On the other hand, anatomy is concerned with the structure, shape, and organization of body parts, including organs, tissues, and cells.

Together, anatomy and physiology provide a comprehensive understanding of the human body and its intricate workings, helping medical professionals diagnose and treat illnesses and maintain overall health.

Therefore, The branch of medical science that considers the functions of anatomical parts is called physiology.

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Answer:

It is an educated guess

Explanation:

let me know if the bottom ones need to be answered too.

Answer:

D.

Explanation:

I think its D. because Tea during a cold workout isnt safe at all. Drinking tea while working out adds weight and you just simply dont need tea when working out.. Hope this helps man :)

C. You shouldn't exercise while drinking hot tea because you can spill it and burn yourself especially while on a treadmill.

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\(\left[\begin{array}{ccc}Thanks,\\JustSomeIdiot\end{array}\right]\)

According to the most recent data from satellites making precise measurements of the properties of the cosmic background radiation (CBR), it has been determined that dark energy makes up approximately 68% of the total energy density of the universe.

This means that dark energy is the dominant force driving the acceleration of the expansion of the universe.

The CBR is the afterglow of the Big Bang, and by analyzing its properties, scientists can learn more about the structure and evolution of the universe. The Planck satellite, launched in 2009, has been instrumental in providing high-precision measurements of the CBR and contributing to our understanding of dark energy.

Despite being the dominant force in the universe, dark energy remains a mystery. Its nature and properties are still largely unknown, but it is thought to be a property of space itself rather than a type of matter or energy. Ongoing research and observations will continue to shed light on this elusive phenomenon and deepen our understanding of the universe as a whole.

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The correct answer is c. The center of mass position would move to the right.

In Example 12.1, we have two balls of equal mass placed on a rod at equal distances from the center. The center of mass is at the center of the rod, which is also the midpoint between the two balls.

If a third ball of equal mass is placed on the rod at x = 10 cm, the center of mass will move to the right. This is because the distance of the third ball from the center is greater than the distance of each of the two balls from the center, causing the center of mass to shift towards the third ball.

The exact amount of the shift depends on the mass of the third ball and its distance from the center, but in general, the center of mass will move to the right.

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Answer:

This question is incomplete, as it lacks options. The options are:

A. chemical energy is the same and additional energy is produced as heat and light.

B. chemical energy is more than the amount of heat and light

C. the amount of chemical energy is less than the amount of heat and light energy

D. the amount of chemical energy equals the amount of heat and light energy.

The answer is D

Explanation:

According to the first law of thermodynamics, which is the LAW OF CONSERVATION OF ENERGY, energy is neither created nor destroyed but can only be changed from one form to another. This law states that no energy in a system is lost, hence, the input energy must be equal to the output energy.

When a log of wood is burnt, the chemical energy stored in it is converted to heat energy and light energy. Based on the law of conservation of energy, the amount of chemical energy present in the log before the burning process must equal the amount of light and heat energy it changed to after the burning process.

That is, chemical energy = light energy + heat energy.

Answer:

v = 27.5 m/s

Explanation:

p = m × v

6,875 = 250 × v

250v = 6,875

v = 6,875/250

v = 27.5 m/s

Answer:

D. Numbers of atoms

Explanation:

The feature of the components of matter that only stays the same in chemical reactions is: D. numbers of atoms.

The law of conservation of matter (LOCOM) states that mass can neither be created nor destroyed in any chemical reaction.

This ultimately implies that, a balanced chemical equation would always require the same number of atoms on both the reactant side and product side of a chemical reaction.

In conclusion, we can deduce that the feature of the components of matter that only stays the same in chemical reactions is: D. numbers of atoms.

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Answer:

Tension.

tension is the name of force that opposes or goes opposite of gravity

Hope this helps!

Answer: Friction

Explanation: Friction opposes gravity and any motion in two surfaces.

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The most economical sources for electricity in remote locations would be solar and wind electricity production.

Solar power is the process of converting sunlight into electricity using photovoltaic (PV) cells or panels. The photovoltaic effect, discovered by French physicist Edmond Becquerel in 1839, converts sunlight into electricity.

Solar panels generate direct current (DC) electricity when exposed to sunlight. The current is transferred to an inverter, which converts the DC electricity to alternating current (AC) electricity, which is used in homes and buildings.

Wind energy is a type of renewable energy generated by the movement of the wind. Wind turbines are used to convert wind energy into electricity. Wind energy is the most commonly used renewable energy source, accounting for around 5% of all electricity generated worldwide. Wind turbines can be installed on land or offshore, depending on the location.

In conclusion, solar and wind electricity production are the most economical sources for electricity in remote locations.

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Answer:

5 years

Explanation:

\(\frac{1}{8}(40)\\\\= 5\)

According to the question the speed of pulse is = 0.33m/s

Velocity is the pace and direction of either an object's movement, whereas speed is now the time rate which an object is travelling along a path. In other words, velocity is a vector, whereas speed would be a scalar value. If you determine how far an object travels in a certain amount of time, you can calculate its speed.For instance, an automobile is moving at a pace of 70 miles per hour if it covers 70 miles in an hour .

The equation for speed can be obtained by simply dividing time by distance.

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Neutral atoms must contain equal numbers of option (1) protons and electrons.

Protons carry a positive charge, while electrons carry a negative charge. In an electrically neutral atom, the positive charge of the protons is balanced by the negative charge of the electrons, resulting in a net charge of zero.

The balance between the positive charge of protons and the negative charge of electrons is essential for maintaining the overall neutrality of an atom. If the number of protons and electrons is not equal, the atom becomes charged and is referred to as an ion. Understanding the requirement for an equal number of protons and electrons in neutral atoms is fundamental to the study of atomic structure and the behavior of elements in chemical reactions.

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Answer:

11. Light waves are electromagnetic (created by electromagnetic impulse)

12. Light waves in a medium are slower V = C / Nm where Nm is the index of refraction of the medium

13. The frequency of the vibration remains the same

14. The wavelength of light in the medium is less

λ = V / f    and it was determined in 12 that the velocity is less in the medium

Answer:

1kW = 1000W

600W = 0.6kW

Cost of electric bill = 0.6kWh × 24 × 30 × $0.05

                               = $21.60