The diagram shows a hand reaching for a doorknob.
Which action would decrease the strength of the electric force between the hand and the doorknob?
A) moving the hand closer to the doorknob
B) moving the hand farther away from the doorknob
C) adding negative charges to the hand
D) magnetizing the doorknob

Answer:

Because there is no gravity determining where you are.

Explanation:

I hope this helps

have a good day :)

Answer:

60

Explanation:

Answer:

gravity?

Explanation:

i dont have a lot of context but this is what i thought of so...

Stars and planets form when dust and gas from space is pulled together by gravitation.

In mechanics, gravity, often known as gravitation, is the force of attraction that acts on all matter. It has little impact on determining the intrinsic characteristics of common stuff because it is by far the weakest known force in nature.

In contrast, it governs the formations and evolution of stars, galaxies, and the entire cosmos by its extensive and ubiquitous action, which affects the trajectories of objects in the solar system and beyond the universe. All objects on Earth experience weight, or a gravitational pull that is proportionate to their mass and is imposed by the planet's mass.

Hence, the stars and planets form when dust and gas from space is pulled together by gravitation.

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A hypothesis and/or theory is s a proposed solution to a scientific problem.

A hypothesis is an assumption based on some basic, limited evidence for further investigation. A proposed solution to a scientific problem is called a hypothesis.

The scientific hypothesis is defined as the relationship between two or more variables or a proposed explanation for some observed process. The scientific hypothesis can happen during scientific experiment.

The good scientific hypothesis may possess a hypothesis must be testable and falsifiable. Someone must be able to test a given hypothesis through scientific experimentation.

A hypothesis is an assumption based on some basic, limited evidence for further investigation. A proposed solution to a scientific problem is called a hypothesis.

Thus, A proposed solution to a scientific problem is called a hypothesis.

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Answer:

find out the le

Explanation:

Answer:

In general there are three sub-segments of "alternative" energy investment: solar energy, wind energy and hybrid electric vehicles

Answer: 90 km

Explanation: 60 * 1.5

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 244 g

volume = 90 mL

So we have

[tex]density = \frac{244}{90} = \frac{122}{45} \\ = 2.71111111...[/tex]

We have the final answer as

Hope this helps you

Answer:

A balanced chemical reaction preforms the law of conservation of mass, when the total mass of the products always equals the total mass of the reactants.

Explanation:

In a balanced chemical reaction, the total mass of the products always equals the total mass of the reactants. Thus the total mass of the system is conserved.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Hence, the total mass of the system is conserved. However, mass can be transformed into equivalent energy.

The  balanced chemical equation of a reaction represents the perfect stoichiometric ratios of each reactants and products. The number of each elements in the product side must be equal to their number in the reactant side.

Therefore, the total mass of a products in a reaction is always equal to the total mass of reactants and no new atoms are created or any reactant elements are destroyed.

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Answer:

A transistor works when the electrons and the holes start moving across the two junctions between the n-type and p-type silicon. ... By turning a small input current into a large output current, the transistor acts like an amplifier. But it also acts like a switch at the same time.

Explanation:

Answer:

The sea level could have been much higher in the past.

Explanation:

The tectonic plates shifted and the mountain rose from there.

They are trapped throughout the rock whereas the seashells have been on the floor of a modest seafloor.

Thus the above response is appropriate.

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Answer:

rose

sunflower

seaweed

Answer:firt answer corrcect who answerd

Explanation:

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Inertia is the resistance of an object to any change in motion. Inertia is proportional the mass of the object: in fact, as we experience in common situations, the larger the mass of an object, the more difficult it is to change its motion.

Inertia of an object is its inherited property. It is the measure of its mass. It is clear that the inertia of an object depends directly on its mass. Mass of an object is the amount of matter contained in it. It is same at every location.

Given that in the case four thing Biscuit, Feather, Elephant, a 1st grader out of which Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

Feather, Biscuit, a 1st grader, Elephant is order of  LEAST inertia to MOST inertia.

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Explanation:

i think the answer is displacement

Answer:

D. Newton's first law is sometimes called the relative inertia law.

Explanation:

Newton's first law of motion states that an object at rest will stay at rest and that in motion will stay in motion with same speed and in the same direction unless an unbalanced force acts on it. It is also called the law inertia. Mass and inertia play a role in this law because mass is a quantity that mainly depends on inertia in that a body with more inertial will exhibit more mass.

Answer:

(a). The speed of the airplane is 78.53 m/s.

(b). The centripetal acceleration 1.234 m/s².

Explanation:

Given that,

Radius = 5000 m

Time = 400 second

We need to calculate the speed of the airplane

Using formula of speed

[tex]v=\dfrac{d}{t}[/tex]

[tex]v= \dfrac{2\pi r}{t}[/tex]

Put the value into the formula

[tex]v=\dfrac{2\times\pi\times5000}{400}[/tex]

[tex]v=78.53\ m/s[/tex]

We need to calculate the centripetal acceleration

Using formula formula

[tex]a=\dfrac{v^2}{r}[/tex]

Put the value into the formula

[tex]a=\dfrac{78.53^2}{5000}[/tex]

[tex]a=1.234\ m/s^2[/tex]

Hence, (a). The speed of the airplane is 78.53 m/s.

(b). The centripetal acceleration 1.234 m/s².

Answer:

lines?

Explanation:

Answer:    The strong nuclear force is one of the four fundamental forces in nature; the other three are gravity, electromagnetism and the weak force. As its name implies, the strong force is the strongest force of the four. It is responsible for binding together the fundamental particles of matter to form larger particles

Answer:

C

Explanation:

the correct answer is C

Answer:

Flexible and responsive to the clients requests

Explanation:

Change in design is the alteration of the specification of a product based on present or current requirements, as such change in design can take place at any stage of a product life cycle.

However, it is more cost effective to make changes to the design at the early stages of a product than at the later stages, due to the cost incurred in making adjustments and the previous expenses incurred if the design that was later changed had moved into more advanced stages.

Answer:

i don’t understand

Explanation:

Answer:

There's no question-

Answer:

as businesses became aware of the demand for equal access, they began t invest in research and development to meet the desires of their costumers.

Explanation:

just took the test, still failing :D

Answer:

D a conclusion

Explanation:

The definition of hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation

Answer:

True

Explanation:

a = v ² / R

where a is acceleration, v is speed, and R is the radius. So

7.5 m/s² = v ² / (1.2 m)

v ² = (7.5 m/s²) / (1.2 m)

v ≈ 6.8 m/s

Answer:

It will cost $20.81

Explanation:

Cost of Electricity

The rate of the cost of electricity is usually expressed in $/KWH because the consumption of electricity is measured in Kilowatts-hour.

If a 25W porch light is on day and night for a full year, the electricity consumption is:

25W*24 H/Day*365 Day/year* 1 year=219,000 WH

converting to KWH: 219,000 WH = 219,000 /1000 KWH = 219 KWH

The rate is $0.095/KWH, thus:

The cost of electricity is 219 KWH*$0.095/KWH= $20.81

It will cost $20.81

Answer: A

Explanation:

The speed of the spaceship  moving around a planet only by the gravitational force  is 7.12 × 10³ m/s.

A fictitious force that moves in a circle and is directed away from the center of the circle is called centrifugal force. When measurements are taken in an inertial frame of reference, the force does not exist. It only becomes relevant when we switch from a ground/inertial reference frame to a rotating reference frame.

The centrifugal force's unit is newton.

As the gravitational force is balanced by centrifugal force is orbital motion:

Gravitational force =centrifugal force

GMm/r² = mv²/r

v² = GM/r

v = √( GM/r)

= √(6.67×10⁻¹¹ ×4.76  ×10²⁶/6.27 ×10⁸)

= 7.12 × 10³ m/s.

Hence, The speed of the spaceship  is 7.12 × 10³ m/s. Hence, option (A) is correct.

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