a rock on the moon has a mass of 17kg, what is the mass if this same rock on earth?

Answer: 1,270 J

Explanation: APEX

Answer: 1,270 J

Explanation:

Just did it!!

The zodiac sign that is represented by the scales is Libra. It is the seventh sign in the astrological calendar, and it is ruled by the planet Venus.

The symbol of the scales represents balance, harmony, and justice, which are some of the core traits associated with Libra. People born under this sign are said to be diplomatic, charming, and sociable.

They have a strong sense of justice and are known to be peacemakers who value harmony in all aspects of life. They are also known to have a good taste in art, music, and fashion. Libra is an air sign, which means that they are intellectual and communicative.

However, they can also be indecisive and prone to procrastination. Overall, Libra is a sign that values harmony and seeks to find balance in all areas of life.

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Answer:

ADE

Explanation:

Answer:

-A mover carries a box up a flight of stairs.

-Wind blows a pool chair across the yard.

-A weightlifter lifts a barbell off the ground.

Explanation:

TRUSTTTT A HOOOEEEE

Answer:

M = 0.037kg

Explanation:

Given the following data

Height, h = 0.15 km to meters = 0.15*1000 = 150m

P.E = 55J

Acceleration due to gravity, g = 9.8m/s²

To find the mass

P.E = mgh

Substituting into the equation, we have

55 = m*9.8*150

55 = 1470*m

Mass, m = 55/1470

Mass, m = 0.037kg

The work required to pull the hanging part of the chain back onto the table is equal to -m * g * (1/4) * L, considering the potential energy of the hanging portion.

The potential energy of an object is given by the formula:

Potential Energy = Mass * Gravitational Acceleration * Height

In this case, the height of the hanging portion of the chain is one-fourth of its total length, which is (1/4) * L.

Therefore, the potential energy of the hanging portion is:

Potential Energy = (m * g * (1/4) * L)

To bring the hanging portion back onto the table, the work done is equal to the negative change in potential energy.

Work = -Potential Energy

Work = -m * g * (1/4) * L

where m is the mass of the chain, g is the acceleration due to gravity, and L is the length of the chain.

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Answer:

4.0 m/s

Explanation:

acceleration = (16-2) /3.5 = 4 m/s

Answer:

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Explanation:

Answer:

option B is correct answer of this question

they will crash into each other and form mountains

hope it helps

The statement that "uv-a is the most energetic of the three forms of UV light" is not correct. UV-C is actually the most energetic form of UV light, followed by UV-B and then UV-A.

UV light is a type of electromagnetic radiation that comes in three forms: UV-A, UV-B, and UV-C. These different forms of UV light have different wavelengths and energy levels. UV-C has the shortest wavelength and highest energy, making it the most energetic of the three forms of UV light. UV-B has a longer wavelength and lower energy than UV-C, but is still more energetic than UV-A. UV-A has the longest wavelength and lowest energy of the three forms of UV light. So, the statement that UV-A is the most energetic is not accurate.

UV-C is the most energetic form of UV light, followed by UV-B and then UV-A. It is important to understand the differences in energy levels of these types of UV light, as they can have different effects on living organisms and materials.

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Answer:

B=the control group

Explanation:

Answer:

B

Explanation:

As an AI language model, I do not condone or promote drug use or abuse. However, I can provide an objective answer to your question based on scientific and medical information. Narcotics are a class of drugs that are derived from opium or synthetic opioids.

They are powerful painkillers and are used for medical purposes to alleviate severe pain. The most important characteristic of narcotics is their ability to affect the central nervous system and produce feelings of euphoria, relaxation, and sedation. This is why they are often abused and can lead to addiction. Narcotics are also highly addictive and can cause physical and psychological dependence.

Long-term use can lead to tolerance, which means that higher doses are needed to achieve the same effects. Overdose of narcotics can lead to respiratory depression, coma, and death. Therefore, it is important to use narcotics only under the supervision of a licensed healthcare provider and to follow the prescribed dosage. Misuse of narcotics can have serious consequences, both for the individual and society.

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Narcotics are a class of drugs that are derived from opium or synthetic opioids.

They are powerful painkillers and are used for medical purposes to alleviate severe pain. The most important characteristic of narcotics is their ability to affect the central nervous system and produce feelings of euphoria, relaxation, and sedation. This is why they are often abused and can lead to addiction. Narcotics are also highly addictive and can cause physical and psychological dependence.

Long-term use can lead to tolerance, which means that higher doses are needed to achieve the same effects. Overdose of narcotics can lead to respiratory depression, coma, and death. Therefore, it is important to use narcotics only under the supervision of a licensed healthcare provider and to follow the prescribed dosage. Misuse of narcotics can have serious consequences, both for the individual and society.

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Answer:

Energy implies as the object’s capability to perform work. It is something that cannot be created or destroyed but can only be transformed. An object loses its energy, when it performs work, whereas it gains energy when the work is performed on it. Energy is broadly classified as kinetic energy and potential energy. While kinetic energy is the energy which an object contains because of a particular motion.

On the other hand, potential energy is the stored energy, because of its state of rest. As both the two forms of energy are measured in joules, people get easily confused between these two. So, take a read of the article which will help you to understand the differences between kinetic and potential energy.

Explanation:

Hope this helps - Good luck ^w

Answer:

Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

The density of mercury is about 13.6 grams per cubic centimeter (g/cm³) at room temperature.

Mercury is a dense, silvery-white metal that is liquid at room temperature. Density is defined as mass per unit volume i.e  \(\frac{mass}{volume}\). This means that if we take one cubic centimeter volume of mercury, it will have a mass of 13.6 grams. This means that if you were to take a container of water and a container of mercury of equal volume, the container of mercury would weigh over 13 times more than the container of water. Mercury is often used in scientific instruments like barometers, thermometers, and manometers because its high density allows it to accurately measure pressure and temperature changes. However, it is also toxic and can be dangerous to handle.

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Answer:

I = Q / t          definition of current I

Q = i t = 10 Coul/sec * 60 sec = 600 Coul

A 10-A current is maintained in a simple circuit with a total resistance of 209 ohms, then the net charge passes through any point in a circuit during a 1-minute interval would be 6000 Coulombs.

Charged material experiences a force when it is exposed to an electromagnetic field due to the physical property of electric charge. You can have a positive or negative electric charge.

Electric current is defined as the charge per unit of time.

The mathematical relation between current and the electric charge

I =Q/T

Let us first convert the time period of minutes into seconds

1 min = 60 seconds

10  min = 10*60 seconds

            =600 seconds

Q = I*t

   =10*600

   =6000 Amperes

Thus, the net charge that passes through any point in a circuit during a 1-minute interval would be 6000 Amperes.

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Answer: Budding is one of the methods of asexual reproduction in organisms.

Explanation:

The asexual reproduction is the process in which new organisms are produced from the parent organism without the formation of gametes. The budding is one of the methods of asexual reproduction in which from a mature organism a bud develops as an outgrowth. The bud obtains the nutrition from the parent organism and increase in size. On maturity the bud dissociate or detach from the parent organism and lives as separate individual organism. Budding can be seen in the case of Hydra, and Yeast.

You should always measure your following distance in A. seconds. This helps maintain uniformity and consistency.

Using time as a measure of following distance allows for consistency in maintaining a safe space between vehicles, regardless of speed. The recommended following distance is typically 3 seconds, which can be adjusted depending on road conditions, visibility, and other factors.

The other options are incorrect because:

B. Car lengths: Measuring distance in car lengths can be misleading, as different vehicles have varying lengths, and this method doesn't account for changes in speed. At higher speeds, a greater distance is needed to react and stop safely.

C. Feet: Measuring distance in feet can also be problematic, as it is challenging to estimate this distance while driving, and it doesn't account for variations in speed. A larger distance is required to ensure adequate reaction time and safe stopping at higher speeds.

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The magnitude of second charge that is 0.05 m away from the first charge of - 5 * \(10^{-6}\) C is 7.79 * \(10^{-5}\) C

F = k \(q_{1}\) \(q_{2}\) / r²

F = Electric force

k = Coulomb's constant

\(q_{1}\), \(q_{2}\) = Electric charges

r = Distance between the two charges

\(q_{1}\) = - 5 * \(10^{-6}\) C

F = - 70 N ( Since the force is attractive )

d = 0.05 m

k = 8.99 * \(10^{9}\) N m² / C²

- 70 = 8.99 * \(10^{9}\) * ( - 5 * \(10^{-6}\) ) * \(q_{2}\) / 0.05

\(q_{2}\) = 3.5 / 44.95 * 10³

\(q_{2}\) = 7.79 * \(10^{-5}\) C

Coulomb's law states that force between two point charges is directly proportional to the product of magnitude of charges and inversely proportional to the square of distance between them.

Therefore, the magnitude of second charge is 7.79 * \(10^{-5}\) C

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Answer:

Strong electrical currents in close proximity to the magnet.

Other magnets in close proximity to the magnet.

Neo magnets will corrode in high humidity environments unless they have a protective coating.

Explanation: Heat radiation

Answer: 1 Heat.

2 Radiation.

3 Strong electrical currents in close proximity to the magnet.

4 Other magnets in close proximity to the magnet.

5 Neo magnets will corrode in high humidity environments unless they have a protective coating. Hope this helps. Can I give me brainliest

Explanation:

The conditions that must be satisfied for momentum to be conserved in a system are; The total external force acting on a system must be zero. In other words, the net force on the system must be zero.

If there is no net force on the system, the momentum of the system will remain constant with time.The mass of the system must remain constant with time. If the mass of the system is changing with time, the momentum of the system will also change with time. Therefore, it is essential to keep the mass of the system constant.

The collision must be elastic. In an elastic collision, the total kinetic energy of the system is conserved, and the momentum of the system is conserved. In other words, the system behaves as if there were no external forces acting on it. If the collision is not elastic, the total kinetic energy of the system will not be conserved. Instead, some of the kinetic energy will be converted into other forms of energy, such as thermal energy or sound energy.If the above three conditions are satisfied, the momentum of the system will be conserved.

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Answer:

A force is a push or a pull.

Explanation:

Example: A boy is pushing a box. He has to push the box to go forward or pull it to go backwards.

Hope this helped

The speed of a ball that is thrown upward into the air, neglecting air resistance, changes over time due to the force of gravity. The ball's velocity decreases as it rises, reaches zero at the peak of its trajectory, and then increases as it falls back towards the ground.

The motion of an object under the influence of gravity can be described by the laws of physics. When a ball is thrown upward into the air, it initially moves with a certain velocity. However, as the ball rises, its velocity changes due to the force of gravity acting on it. In this answer, we will neglect the effect of air resistance and focus solely on the effect of gravity.

When a ball is thrown upward, it has an initial velocity, which is equal to the magnitude of the velocity with which it was thrown. This velocity is positive, meaning that it points in the upward direction. However, as the ball rises, it is slowed down by the force of gravity, which acts in the downward direction. As a result, the velocity of the ball decreases over time.

The acceleration due to gravity, g, is a constant 9.8 m/s^2, and it acts in the downward direction. The equation for velocity, v, as a function of time, t, can be expressed as v = v0 - gt, where v0 is the initial velocity. This equation shows that the velocity of the ball decreases linearly with time as it rises into the air.

At the peak of its trajectory, the ball has zero velocity. This means that it is momentarily at rest, and from this point on, it begins to fall back towards the ground. The velocity of the ball at this point is negative, meaning that it points in the downward direction. As the ball falls, its velocity increases due to the force of gravity, and it continues to increase until it reaches the ground.

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An energy equation is a chemical equation which involves the energy that is evolved or absorbed in the reaction.

The term energy refers to the ability to do work. An energy equation is a chemical equation which involves the energy that is evolved or absorbed in the reaction.

This question is incomplete as the former energy equation is not shown. However, such equations can be used to know an endothermic or exothermic reaction.

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Doubling the ISO number effectively doubles camera sensitivity, like opening one stop or increasing gain by 6 dB. The ISO is the level of sensitivity of the camera's sensor to light from the outside environment.

When taking photos in low-light situations, a higher ISO is required. In photographic terminology, doubling the ISO number is known as 'one-stop faster.' As a result, increasing your ISO from 100 to 200 is equivalent to opening up your aperture or increasing your shutter speed by one stop, both of which double the amount of light that reaches the sensor. Furthermore, increasing your ISO may result in an increase in the camera's sensitivity, but it also has a disadvantage, which is an increase in image noise, commonly known as grain. As a result, even if you're taking pictures in low light, you'll want to keep your ISO as low as possible to avoid producing noisy images.

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Explanation:

Some Uses of Electromagnetic waves :

(A) Microwaves

(B) X - Rays (produced by slowing fast moving electrons)

(C) Radio Waves

Answer:

Option D. 5.45 Ω

Explanation:

From the question given above, the following data were obtained:

Resistance 1 (R₁) = 10 Ω

Resistance 2 (R₂) = 20 Ω

Resistance 3 (R₃) = 30 Ω

Voltage (V) = 120 V

Equivalent resistance (R) =?

The equivalent resistance can be obtained as follow:

1/R = 1/R₁ + 1/R₂ + 1/R₃

1/R = 1/10 + 1/20 + 1/30

Find the least common multiple (lcm) of 10, 20 and 30. The result is 60

Divide 60 by each of the denominators and multiply by their numerators respectively. We have:

1/R = (6 + 3 + 2)/60

1/R = 11/60

Invert

R = 60/11

R = 5.45 Ω

Thus, the equivalent resistance in the circuit is 5.45 Ω

The dose received when moving from 1 meter to 2 meters from a radiation source decreases as the distance from the source increases.

The dose received from a radiation source is inversely proportional to the square of the distance from the source. This relationship is known as the inverse square law. According to the inverse square law, when the distance from the source is doubled (from 1 meter to 2 meters), the dose received is reduced to one-fourth of the original dose.

This is because the intensity of radiation decreases with distance due to the spreading of radiation over a larger area as it travels away from the source. As the distance from the source increases, the radiation spreads out and becomes less concentrated, resulting in a decrease in the dose received.

Therefore, when moving from 1 meter to 2 meters from a radiation source, the dose received is reduced by a factor of four due to the inverse square law. It is important to maintain a safe distance from radiation sources to minimize exposure and potential health risks.

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Here are some of them:

1. Welding position: Electrode size should be selected based on the position of welding.

2. Welding current: The size of the electrode should match the welding current range.

3. Material thickness: The electrode diameter should be selected based on the thickness of the base material.

4. Welding technique: The welding technique, whether it is vertical, horizontal, or overhead, will determine the required electrode size.

5. Joint configuration: The type of joint, the gap between the base material, and the base metal thickness determine the size of the electrode.

6. Electrode coating: The coating of the electrode will affect its performance, penetration, and the appearance of the weld. The electrode should be selected based on the type of coating needed for the application.

These factors will help in selecting the right electrode size for a welding project.

At the summit of Mount Shasta,

Atmospheric pressure, Patm = 58.5 kPa

                                             = 58500Pa

Let h be the height that water will reach when siphoned at the summit.

58500 Pa = h x 1000 kg/m^3 X 9.8 m/s^2

h = 58500 Pa/1000 kg/m^3 X 9.8 m/s^2

h = 5.97 m

Therefore, at the summit the water will rise to a height of 5.97 m, which is less than 8.5 m.

Hence, the student will not be successful in her attempt.

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The summit the water will rise to a height of 5.97 m, which is less than 5.97 m.

Atmospheric pressure is the pressure of the air or gas surrounding the Earth. It is caused by the weight of the air pushing down on the Earth's surface. Atmospheric pressure is usually measured in millibars (mb). The average atmospheric pressure at sea level is 1013.25 mb. This value can change due to differences in weather and altitude. Low atmospheric pressure is associated with storms and high atmospheric pressure is associated with fair weather. Atmospheric pressure is important to the functioning of many everyday items, such as aircraft, car engines, and weather instruments. Additionally, atmospheric pressure changes are used in weather forecasting and to predict the movement of air masses, fronts, and storms.

At the summit of Mount Shasta,

Atmospheric pressure, Patm = 58.5 kPa

                                            = 58500Pa

Let h be the height that water will reach when siphoned at the summit.

58500 Pa = h x 1000 kg/m^3 X 9.8 m/s^2

h = 58500 Pa/1000 kg/m^3 X 9.8 m/s^2

h = 5.97 m

Therefore, at the summit the water will rise to a height of 5.97 m, which is less than 5.97 m

Hence, the student will not be successful in her attempt.

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The temperature of both the first and second steel blocks is 400 K, the same as the temperature of the aluminum block.

To determine the respective temperatures of the first and second steel blocks, we need to apply the principle of thermal equilibrium. According to this principle, when two objects are in thermal equilibrium, they have the same temperature.

Given that the third block of aluminum is in thermal equilibrium with both steel blocks, it implies that the temperatures of the aluminum block and the steel blocks are the same.

Therefore, the temperature of both the first and second steel blocks is 400 K, the same as the temperature of the aluminum block.

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Answer:

b. they move in convection currents.

Explanation:

i learned this in 4th grade