Technician a checks the surface of the drum for scoring by running a fingernail across the surface. technician b replaces any drum that is scored. who is correct?

Answer:

• This is called motion under gravity, so we consinder only vertical motion and neglect horizontal motion.

• From the second equation of motion;

\( \hookrightarrow \: { \boxed{ \rm{S = ut + \frac{1}{2} gt {}^{2} }}} \\ \)

• Assuming the ball is dropped from rest:

\({ \tt{S = (0 \times \frac{1}{2} ) + ( \frac{1}{2} \times 10)( { \frac{1}{2} )}^{2} }} \\ \\ { \tt{S = \frac{1}{8} \times 10}} \\ \\ { \tt{S \approx1 \: meter}}\)

In 1/2 seconds, the golf ball would have travelled 1.225 meters in the downward direction.

The second equation of motion is -

S = ut + 1/2at²

Given is a golf ball dropped from a certain height.

We can write -

[u] = 0 m/s

[t] = 1/2 sec

[a] = 9.8 m/s²

Using the second equation of motion -

h = ut + 1/2at²

h = 0.5 x 9.8 x 0.5 x 0.5

h = 1.225 meters

Therefore, in 1/2 seconds, the golf ball would have travelled 1.225 meters in the downward direction.

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Answer:

a ceiling fan a ceiling fan

In order to create a magnifier in convex lens, you should choose a short focal length that is lesser than 1 meter.

A convex lens is also referred to as converging lens and it can be defined as a type of lens that typically causes parallel rays of light with respect to its principal axis to come to a focus (converge) and form a real image.

In Science, a magnifier refer to an optical instrument that allow us to look at a very near object because its image is generally formed farther away. Thus, the image of the object appears to be much larger.

In this context, you should choose a short focal length that is lesser than 1 meter when you want to create a magnifier in convex lens because the nearer the object is to the lens, the larger would be the image formed.

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Answer:

what about it i need more info

Explanation:

As the distance from Earth to a star increases, its parallax decreases.

Parallax is the apparent shift in the position of an object when viewed from different vantage points. In the case of stars, parallax is used to measure their distance from Earth. When a star is closer to Earth, its parallax is larger because the angle of the apparent shift is greater. As the star's distance from Earth increases, the angle of the apparent shift becomes smaller, resulting in a decrease in parallax. please add just 2 short concluding lines

In conclusion, the parallax of a star decreases as its distance from Earth increases. This relationship allows astronomers to use parallax measurements to estimate the distance to nearby stars and understand their positions in the vast expanse of the universe.

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Answer

as it is given that 1hp=746W

100W=?hp

746hp=100W   (to find the value of hp we divide 100 on both sides)

746/100=hp

hp=7.46

Answer:

A. Particle model.

Explanation:

The photoelectric effect describes when light shines on a piece of metal, and the metal releases electrons. The model of light behavior which best helps to explain this effect is the particle model. According to Isaac Newton, he postulated that light consists of little (tiny) particles which typically travels in a straight line and from his experimental investigation he observed that white light comprises of a mixture of colors.

Sir Newton observed that, when light shines on a piece of metal, the metal releases electrons because the energy of the tiny light particles are greater than the binding energy of the electrons residing in the metal. This theory is known as the particle model of light.

A) Formulate policies to protect wetlands and ensure that the policies are enforced.

B) Wetlands hold important biodiversity. They are a source of foods, medicines, and raw materials. They help with stabilizing the climate.

As a governor of my state, the two most important steps to protect wetlands include:

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To protect the wetlands, I will ensure a strict enforcement of all existing state laws on the conservation of wetlands.

The wetlands are those areas that consists of marshes and swamps. They are of great important to the ecosystem and biodiversity.

a) The two things that I will do to protect wetlands are;

b) Wetlands are very important because;

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The area enclosed by a hysteresis loop is the measure of D) energy loss per cycle.

Explanation: A hysteresis loop represents the behavior of a magnetic material when subjected to a changing magnetic field. It shows the relationship between the magnetic field strength (H) and the magnetic flux density (B). The loop is closed, meaning that as the magnetic field is cycled back and forth, the material retains some residual magnetism.

The area enclosed by the hysteresis loop represents the energy dissipated or lost as heat during one complete cycle of magnetization and demagnetization. This energy loss is primarily due to the internal friction and resistance of the material. The larger the area of the hysteresis loop, the greater the energy loss.

Therefore, the area enclosed by the hysteresis loop serves as a measure of the energy loss per cycle in a magnetic material. It is an important parameter in assessing the efficiency and performance of magnetic devices.

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Answer:

F

Explanation:

F is not a molecule, a molecule contains two or more cells. But F stands for fluorine, which I think is a singular cell.

Answer:

Ethical Guidelines for Research With Human Subjects

Participation Must Be Voluntary.

Researchers Must Obtain Informed Consent.

Researchers Must Maintain Participant Confidentiality

Explanation:

Basta Yun na yan correct me if I'm wrong hehehhe

Answer:

2-3-1-4

Explanation:

First you will need an energy source so 2 is the first step.

Then the lead and lead oxide are reformed during re-charge so 3 is the second step.

The battery is back in operation when Lead dissolves in acid so 1 is the third step.

Battery produces electrons so 4 is the final step.

Answer:

add add more hot water in the flask painted shiny white while less of it in the one painted Matt black

Explanation:

Let's name the flasks A and B respectively

flask A due to the nature of its exterior will tend to reflect heat from the environment thus will need more hot water while flask B since it painted in Matt black the heat will be absorbed from the environment thus will require less hot water

Static equilibrium means that all forces are equal, so to make this easiest you want to break F1 into it's horizontal and vertical components. As there are no other forces acting in the horizontal, we know the horizontal component of F1 is 40N.

Dynamic equilibrium is a state in which bodies are moving at a constant speed as opposed to static equilibrium, which is a state in which bodies are at rest (rectilinear motion). The total amount of forces exerted on them in both situations is zero.

When two forces are acting on an object that is in static equilibrium, it indicates that their sum is zero, which makes static equilibrium a useful analytical tool. You may create an equation to figure out the direction and strength of the unknown force if you know the direction and strength of one of the forces.

Thus, Static equilibrium means that all forces are equal, so to make this easiest you want to break F1 into it's horizontal and vertical components.

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The momentum of an object is 30 kgm/s . This can be calculated by using momentum formula see description below.

It is defined as the product between mass and velocity. Its symbol is p.

It is given by:

p = m * v

What information do we have?

Mass = 5kg

Velocity = 6 m/s

To find:

Momentum=?

On substituting the values:

p = m * v

p =5 kg * 6 m/s

p = 30 kgm/s

Thus, the momentum of an object is 30 kgm/s.

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Answer:

The work done will be "43,200 J".

Explanation:

The given values are:

Force,

F = 720 N

Distance,

S = 60 m

Time,

t = 30 sec

As we know,

⇒  \(Work \ done=Force\times Distance\)

On substituting the values, we get

⇒                     \(=720\times 60\)

⇒                     \(=43,200 \ J\)

Answer:

i found this i hope it helps

Explanation:

The magnitude of this force depends upon the mass of each object and the distance between the centers of the two objects. Mathematically, we say the force of gravity depends directly upon the masses of the objects and inversely upon the distance between the objects squared.

Answer:

shdkahfkkfrgs

Explanation:

:)

The incorrect statement is: "The leading or lagging of current or voltage is not a consideration with power factor." This statement is incorrect because the power factor is affected by the phase relationship between current and voltage in a circuit,

which is determined by whether the circuit is inductive, capacitive, or resistive. The leading or lagging of current or voltage can affect the power factor and the efficiency of the circuit.
Hi! Here's the answer including the terms current, voltage, and circuit:
The INCORRECT statements are:
1. The more resistive the total impedance, the closer the power factor is to 1.
- This statement is incorrect because the power factor approaches 1 when the circuit is purely resistive, not necessarily more resistive.
2. The leading or lagging of current or voltage is not a consideration with power factor.
- This statement is incorrect because power factor is directly related to the phase difference (leading or lagging) between the current and voltage in a circuit.
The other two statements are correct.

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Answer:

Uranus’ distance from the Sun is 2.88 billion km. The exact number is 2,876,679,082 km. Want that number in miles? Uranus’ distance from the Sun is 1.79 billion miles.

Explanation:

Uranus's average distance from the sun as multiple of earth's average distance from the sun is 19.2 AU.

According to Kepler's third law, the square of the period of revolution of the planets is equal to the cube of their mean distance from the sun in astronomical units.  

Using this law;

T^2 = r^3

T = period of revolution = 84 years

r = distance = ?

r = 3√T^2

r =  3√( 84)^2

r = 19.2 AU

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Answer: it's 69200

Explanation:

I gotchu guys

The gas is compressed to 1/7 of its original volume, but since the process is horizontal, there is no change in volume. Hence, no work is done during the process A to B.

Therefore, the work done (WAB) during the process A to B is zero.

The work done by or on the gas during the process A - B can be calculated using the following formula: WAB = -∫PdV where P = pressure, and V = volume. To calculate WAB, we need to calculate the integral of PdV. Since B is represented by a horizontal line, the pressure P is constant. Therefore, WAB = -P∫dVWhere, ∫dV is the integral of dV from the initial volume Vi to the final volume Vf.

The gas is compressed from state A to state B. Therefore, the initial volume Vi = 7.0 dm³ and the final volume Vf = 1/7 * 7.0 dm³ = 1.0 dm³.WAB = -P ∫dV = -P(Vf - Vi)WAB = -200 kPa (1.0 dm³ - 7.0 dm³) = 1200 JThe work done by the gas during the process A - B is -1200 J.

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the density of the cube is 0.194g/cm³

A rectangular cube is 30cm 75mm wide and 12 cm long.

It is of mass= 526g

Density of an object can be defined as the mass divide by the volume of the object

here we have given that the rectangular cube of sides 30cm , 7.5cm and 12cm so the volume is 30 x 7.5 x 12 which is equal to 2700cm³.

we got the volume of the cube so density

= mass/volume

=526/2700

=0.194g/cm³

So from the above equation that is density is mass by volume we got the answer as 0.194g/cm³

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Answer:

A

Explanation:

Answer:

Ottoman

Explanation:

siri told me after I asked

Earth has a definite orbit within the solar system whose the orbit is mainly a result of the mass of the Sun.

An orbit is defined as the regular, repeating path that one object in space takes around another while an object in an orbit is called a satellite which may be natural, such as the Earth or the Moon. According to the height of satellites from the earth, these orbit are classified as

Most of the weather and some communications satellites will tend to have a high Earth orbit which is farthest away from the surface. The main difference between orbit and orbitals is that the former is defined as a fixed path of electron revolutions, whereas the latter is defined as an uncertain region with a high probability of finding an electron.

Therefore, the Earth has a definite orbit within the solar system whose the orbit is mainly a result of the mass of the Sun.

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Radio waves and microwaves have in common is c. Both are at the side of the spectrum that has the lowest frequency.

This means that they have longer wavelengths compared to other types of electromagnetic radiation, such as visible light, ultraviolet light, or gamma rays. Due to their lower frequencies, radio waves and microwaves typically have less energy than other forms of radiation on the electromagnetic spectrum.

Despite their differences in frequency and wavelength, both radio waves and microwaves play important roles in modern technology, as they are utilized for communication, navigation, and even cooking in the case of microwaves. In summary, radio waves and microwaves share a key feature: they are both situated at the side of the electromagnetic spectrum that has the lowest frequency, which in turn results in longer wavelengths and lower energy levels. So the correct answer is C. Both are at the side of the spectrum that has the lowest frequency.

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