At which point does the planet have the least gravitational force acting on it?

Answer:

As traditionally used, impairment refers to a problem with a structure or organ of the body; disability is a functional limitation with regard to a particular activity; and handicap refers to a disadvantage in filling a role in life relative to a peer group.

Explanation:

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The graduated cylinder with the greatest volume change is the one containing the diamond, as it displaced more water than the cylinder containing the platinum.

To determine which graduated cylinder would have the greatest volume change, we need to calculate the volume of water displaced by each object. The volume of water displaced is equal to the volume of the object, as water is displaced to make room for the object.

The graduated cylinder with the greatest volume change will have the larger volume of water displaced.

The formula for calculating the volume of an object is:

Volume = Mass / Density

Let's assume we have 1 gram of diamond and 1 gram of platinum. Using the given densities, we can calculate the volumes of the objects as follows:

Volume of diamond = 1 g / 3.51 g/cm^3 = 0.284 cm³

Volume of platinum = 1 g / 21.43 g/cm^3 = 0.047 cm³

Then, in separate graduated cylinders, we transfer equal masses of diamond and platinum to equal volumes of water. As previously stated, the volume of water displaced by each object is equal to the volume of the object. As a result, for each graduated cylinder, the volume change equals the volume of water displaced by the object. Using the previously calculated volumes, we get:

Volume change for diamond = 0.284 cm³

Volume change for platinum = 0.047 cm³

Therefore, the graduated cylinder with the greatest volume change is the one containing the diamond, as it displaced more water than the cylinder containing the platinum.

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Answer:

its An uncharged object.

if its not charged the electrically wont go on it

Answer:

uncharged object

Explanation:

Answer:

They are caused by outward fluctuations of the sun's magnetic field.

They tend to occur during active periods of the solar cycle.

Explanation:

While sun spots will appear darker than the surrounding surface, flares will tend to appear brighter. CME's are associated with massive flares.

The two correct responses are as follows:

The following information should be considered:

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The sled's speed can be calculated by considering the acceleration, frictional force, and time. After substituting the given values and performing the calculations, the final speed is determined to be 12.25 m/s.

To calculate the speed of the sled after 2.50 seconds, we can use the equations of motion and consider the forces acting on the sled.

Let's denote the initial speed of the sled as v0, the final speed as vf, the acceleration as a, the time as t, and the coefficient of friction as μ.

Initially, the rocket sled is accelerating, so we can use the equation:

vf = v0 + at

Since the sled is skidding along its rails after the rocket engine stops, the only horizontal force acting on the sled is the force of friction. The frictional force can be calculated using the equation:

frictional force = coefficient of friction * normal force

Since the sled is moving horizontally, the normal force is equal to the weight of the sled, which can be calculated as:

weight = mass * gravity

Now, we can determine the acceleration of the sled using Newton's second law:

frictional force = mass * acceleration

Combining the equations and substituting the values, we have:

vf = v0 + (frictional force / mass) * t

To find the frictional force, we need to calculate the weight of the sled and then multiply it by the coefficient of friction:

frictional force = (mass * gravity) * coefficient of friction

Substituting this back into the previous equation, we get:

vf = v0 + ((mass * gravity * coefficient of friction) / mass) * t

Simplifying further, we have:

vf = v0 + (gravity * coefficient of friction) * t

Now we can substitute the given values into the equation. Assuming the acceleration due to gravity is approximately 9.8 m/s², the coefficient of friction is 0.5, the initial speed is 0 m/s (since the sled starts from rest), and the time is 2.50 s, we can calculate the final speed:

vf = 0 + (9.8 * 0.5) * 2.50

vf = 12.25 m/s

Therefore, the sled is moving at a speed of 12.25 m/s after 2.50 seconds.

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Answer:

Here you go, hope this helps! :)

Explanation:

Opportunity cost is the value of the next best thing you give up whenever you make a decision. It is "the loss of potential gain from other alternatives when one alternative is chosen". ... For example, opportunity cost is how much leisure time we give up to work.

The quantity of heat energy that must be transferred to 2.25 kg of brass to raise its temperature from 20 °C to 240 °C is 195030 J

First, we shall list out the given parameters from the question. This is shown below:

The quantity of heat energy that must be transferred can be obtained as follow:

Q = MCΔT

= 2.25 × 394 × 220

= 195030 J

Thus, we can conclude quantity of heat energy that must be transferred is 195030 J

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Answer: Here you go, i hope this kinda helps.

Explanation:Disambiguation is just a fancy way of saying "asking clarifying questions".

Watson Assistant replies to user's questions based on a confidence score.

Sometimes the customer's question could be interpreted in two or three different ways.

For example, if you say you'd like to "book a table for 8", the assistant is able to ask a clarifying question:

Did you mean booking a table for 8PM, 8AM, or booking a table for 8 guests?

Watson Assistant will ask the question when its confidence score is divided between a few options to ensure that your customers get exactly the right service they need.

In a reference frame fixed to Earth, a point on the equator moves zero distance in 1 hour.

A frame of reference in physics is made up of an abstract coordinate system and the collection of physical reference points that fix the coordinate system specifically and regulate measurements inside it.

When we take a reference frame fixed to Earth,  the displacement due to earth's rotation can not be measured. So, any point on earth remains in rest through out the day with respect to the reference frame fixed to Earth. Hence, a point on the equator moves no distance in 1 hour in a reference frame fixed to Earth.

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The activation energy for the diffusion process of Al in Al2O3 is approximately 225,744 J/mol.

To calculate the activation energy for the diffusion process of Al in Al2O3, we can use the Arrhenius equation:

D = D0 * exp(-Q/RT)

where D is the diffusion coefficient, D0 is a constant, Q is the activation energy, R is the gas constant, and T is the absolute temperature.

Taking the natural logarithm of both sides, we get:

ln(D/D0) = -Q/RT

We can then use the given diffusion coefficients and temperatures to obtain two equations:

ln(D1/D0) = -Q/RT1

ln(D2/D0) = -Q/RT2

where D1 and T1 are the diffusion coefficient and temperature at 1000C, and D2 and T2 are the diffusion coefficient and temperature at 1500C.

Taking the ratio of the two equations, we get:

ln(D2/D1) = Q/R * (1/T1 - 1/T2)

Solving for Q, we get:

Q = -R * ln(D2/D1) / (1/T1 - 1/T2)

Plugging in the given values, we get:

Q = -8.314 J/mol-K * ln(2.48 x 10^-14 m^2/s / 7.48 x 10^-23 m^2/s) / (1/1273 K - 1/1773 K)

Q ≈ 225,744 J/mol

Therefore, the activation energy for the diffusion process of Al in Al2O3 is approximately 225,744 J/mol.

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The quantity of heat absorbed by 14 g of water that warms from 30 ∘C to 98 ∘C is approximately 4087.84 J.

Heat absorbed refers to the amount of thermal energy that is taken in by a substance or system during a process, such as heating up or melting.

The amount of heat absorbed by a substance is given by the equation:

Q = m * c * ΔT

Where:

For water, the specific heat capacity is approximately 4.18 J/g°C.

Using the given values, we can calculate the amount of heat absorbed by the water as follows:

m = 14 g

c = 4.18 J/g°C

ΔT = (98°C - 30°C) = 68°C

Q = 14 g * 4.18 J/g°C * 68°C = 4087.84 J

Therefore, the quantity of heat absorbed by 14 g of water that warms from 30 ∘C to 98 ∘C is approximately 4087.84 J.

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Answer:

Lack of cleanliness

Explanation:

Dust and other debris accumulate over time. If you have pets, their hairs pile on too. These clog the lining of where the door closes. If you want your screen door to move more smoothly, you have to clean the lining more frequently.

Answer:

156KC

Explanation:

Pls see attached file

156 C is the total charge on the Earth is implied by measurement.

It states that the electric flux Φ across any closed surface is proportional to the net electric charge q enclosed by the surface;

i.e.  Φ = q/ε0

According to the question,

Electric field of Earth is 139 N/C

ε\(_{o}\)\(= 8.85 *10^{-12} C^{2} /Nm^{2}\)

\(R_{e} = 6.37 * 10^{6}\)

Using the formula by Gauss's Law

Φ = q/ε\(_{o}\) = EA

q = ε\(_{o}\)EA = ε\(_{o}\)E*r²

= \(= 8.85*10^{12} *139*(6.37*10^{6} )^2\\\\= 156,905.9*10^0 = 156C\)

Therefore ,

The total charge on the Earth is implied by this measurement is 156 C.

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Answer:

a) F = 9.69 N

b) F = 10.88 N

c) F = 8.51 N

Explanation:

a) The kinetic frictional force when the elevator is stationary is the following:

\( F_{k} = \mu_{k}N = \mu(mg) \)    

Where:

F(k) is the kinetic frictional force

N is the normal force = mg

m: is the mass = 2.60 kg

g: is the gravity = 9.81 m/s²

μ(k) is the coefficient of kinetic friction = 0.380

\( F_{k} = \mu(mg) = 0.380*2.60 kg*9.81 m/s^{2} = 9.69 N \)    

b) When the elevator is accelerating upward with acceleration "a" equal to 1.20 m/s²

\( F_{k} = \mu_{k}N = \mu[m(g + a)] \)    

The normal is equal to mg plus ma because the elevator is accelerating upward

\( F_{k} = \mu m(g + a) = 0.380*2.60 kg(9.81 m/s^{2} + 1.20 m/s^{2}) = 10.88 N \)    

c) When the elevator is accelerating downward with a =1.20 m/s² we can find the kinetic frictional force similar to the previous case:

\( F_{k} = \mu m(g - a) = 0.380*2.60 kg(9.81 m/s^{2} - 1.20 m/s^{2}) = 8.51 N \)    

I hope it helps you!

Answer:

true

Explanation:

A car burns gasoline(Chemical Potential energy because it has stored energy released as it burns). This Chemical energy transforms into Kinetic energy(energy of motion) as the car moves.

Answer:

True.

Explanation:

the car takes the gas and turns it into energy that makes it move

The distance CE is called the altitude of the triangle ABD.

In mathematics, the distance CE is called the altitude of the triangle ABD.

An altitude is a line segment drawn from the vertex of a triangle to the opposite side, and it is perpendicular to that side.The altitude CE divides the triangle into two smaller right triangles, ACE and BCE.

The length of the altitude can be found using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

To find the length of the altitude CE, you would use the Pythagorean theorem on either of the right triangles.

For example, using the right triangle ACE, you would have:

AC² + CE² = AE²

Where AC is the length of one of the legs of the triangle, CE is the length of the altitude, and AE is the length of the hypotenuse.

By rearranging this equation, you can solve for CE:

CE² = AE² - AC²CE = √(AE² - AC²)

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Answer:

7.74 x 10⁶ Joules

Explanation:

recall that "Watts" is the SI unit used for "energy per unit time"

Hence "Watts" may also be expressed as Joules / Second (or J/s)

We are given that the washer is rated at 350W (i.e. 350 Joules / s) and the dryer is rated at 1800W (i.e. 1800 Joules / s).

We are also given that the appliances are each run for 1 hour

1 hour = 60 min = (60 x 60) seconds = 3600 seconds

Hence the total energy used,

= Energy used by Washer in 1 hour + Energy used by dryer in 1 hour

= (350 J/s x 3600 s)  + (1800 J/s x 3600 s)

= 3600 ( 350 + 1800)

= 3600 (2150)

= 7,740,000 Joules

= 7.74 x 10⁶ Joules

The correct option is C.   Air resistance friction is not useful for an airplane because it slows it down.

Air resistance is the opposition to motion of an object caused by air flow.

High air resistance may cause turbulence during the motion of an air plane. This can lead to engine failure or some mishap during flight.

Air resistance is also a type of friction between air and another material such as airplane.

Friction between the air and the plane slows the airplane down. This is known as air resistance, or drag.

The faster an object travels through the air, the more it has to fight against drag.

Thus, air resistance friction is not useful for an airplane because it slows it down.

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speed is a scalar quantity and velocity is a vector quantity

Answer:

to get energy and nutrients

Explanation:

Answer: The capacitor is fully charged when the voltage of the power supply is equal to that at the capacitor terminals. This is called capacitor charging; and the charging phase is over when current stops flowing through the electrical circuit.

Answer:

proportional tax is.the answer.

Explanation:

because both girls tax is equal.

Answer:

I think the answer is B, keeps Earth in a spherical shape

Answer: State and explain, in terms of the forces acting,how the acceleration of the object varies during its fall. As the object is released two forces act on it. Its weight and and air resistance. At this point its weight is much greater due to the force of gravity on the object so it accelerates downward.

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Roll a skateboard on sand, then roll it on gravel. - this experiment could answer this question. Hence, option (B) is correct.

An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before. Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.

The purpose and scope of experiments vary widely, but they all rely on a repeatable process and a logical examination of the outcomes. Natural experimental experiments are also a thing.

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Answer:

35 N to the left

Explanation:

Do 65 minus 30, and you get 35 N to the left

Because force is a vector quantity, you have to mention both magnitude and direction in your answer.

The statement that best describes the relative stability of the nuclides is "Nuclide B is less stable and is more likely to undergo radioactive decay".

option D is the correct answer.

A nucleus is stable if it cannot be transformed into another configuration without adding energy from the outside.

The two main factors that determine nuclear stability are the neutron-proton ratio and the total number of nucleons in the nucleus.

The nucleus of an atom is unstable if the neutron-proton ratio is less than 1:1 or greater than 1.5.

From the information we can conclude the following;

Radioactive decay is a spontaneous disintegration of unstable nucleus of an atom.

Thus, the nuclide with less stability will undergo radioactive decay and option D is the correct answer.

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