gravitational forces is ------ force​

Answer:

If you want to be flexible, go to yout ube and search Anna Mcnulty. She is the best teacher for flexiblity and she is only 18!

Explanation:

Answer: 0

Explanation:

hope this helps!

Answer:

Short

Explanation:

I took the same test

The type of circuit when there is a direct connection lies between two-points should be a short circuit.

It is not the normal condition with respect to an electric circult where the electric current should be flow via the non-intended, also there is short pathway rather following the circuit.

Moreover, there should be a direct linked between the two points in the circuit that supposed to be directly linked.

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Answer:

\(20 + 10 = 30 \\ 30and50 in \: parallel \\ = \frac{50 \times 30}{50 + 30} \\ = \frac{1500}{80} \\ 18.75 \\ 30nd40parallel \\ \frac{30 \times 40}{70} \\ \frac{1200}{70} = 17.143 \\ total = 18.75 + 17.143 = 35.893ohm \\ thank \: u\)

Answer:

\(20 + 10 = 30 \\ \\ \frac{50 \times 30}{50 + 30} \\ \\ \frac{1500}{80} \\ \\ = 18.45 \\ \\ = second \: \\ \\ \frac{30 \times 70}{70} \\ \\ \frac{1200}{70} \\ \\ = 17.143 \\ \\ total = 18.45 + 17.143 \\ \\ = 35.830hm\)

Answer:

ground Waves

Explanation:

это действие является рективным, формула которой такова: m1×v1 = – m2×v2

m1 - масса игрока

m2 - масса шайбы

v1 - скорость игрока

v2 - скорост шайбы.

отсюда, скорост игрокa: v1 = (m2×v2):m1 = 0.092 m/s

The net acceleration of the toy the instant the rocket is turned on is 4 m/s².When the rocket engine is turned on, the toy rocket experiences a net acceleration of approximately 9.86 m/s².

To determine the net acceleration of the toy when the rocket is turned on, we need to consider both the centripetal acceleration due to the circular motion and the acceleration provided by the rocket engine.

Given:

Length of the string (radius of circular motion): 2 meters

Time for one full rotation: 2 seconds

According to the centripetal acceleration equation:

ac = (4π²r) / T²

where r is the radius and T is the time period.

Substituting the given values:

ac = (4π² * 2 m) / (2 s)²

= (4π² * 2 m) / 4 s²

= π² m/s²

Therefore, the centripetal acceleration is π² m/s².

Additionally, the rocket engine provides an acceleration of 2 m/s² along the direction of the toy's velocity.

To find the net acceleration, we need to consider the vector sum of the centripetal acceleration and the acceleration provided by the rocket engine. Since they are in the same direction, we can simply add them:

Net acceleration = centripetal acceleration + acceleration by rocket engine

= π² m/s² + 2 m/s²

= (π² + 2) m/s²

Approximating π as 3.14:

Net acceleration ≈ (3.14² + 2) m/s²

≈ 9.86 m/s²

Therefore, the net acceleration of the toy the instant the rocket is turned on is approximately 9.86 m/s².

When the rocket engine is turned on, the toy rocket experiences a net acceleration of approximately 9.86 m/s². This includes the centripetal acceleration due to its circular motion and the additional acceleration provided by the rocket engine in the direction of its velocity.

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Answer:

10:30am ........................

Answer:

maybe around 10:30 I would say

When the core temperature rises, stars start burning helium to carbon. Hydrogen and helium are fused in a shell surrounding the core, raising the temperature.

The most prevalent method of generating energy in the cosmos is hydrogen fusion. The gravitational force is utilised to fuse hydrogen at the centres of our Sun and other stars, where it has a density more than 70 times greater than that of steel. Thus, all of the heat and light on earth comes from fusion. Helium is a chemical element with the atomic number 2 and the symbol He. The first member of the noble gas group in the periodic table, it is a colourless, odourless, tasteless, inert, monatomic gas that is not harmful.

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Big has no cause of action against Temper. In this scenario, while Temper may have made a verbal threat and raised his fists in a confrontational manner, there is no indication that he physically touched or harmed Big.

Assault refers to the act of intentionally causing apprehension or fear of imminent harmful or offensive contact. Battery, on the other hand, involves the intentional and harmful or offensive physical contact with another person without their consent.

In this case, Temper's actions may constitute assault due to the verbal threat and raising his fists, creating an atmosphere of fear or apprehension. However, since no physical contact or harm occurred, battery is not applicable. Therefore, the appropriate response is option d: Big has no cause of action against Temper.

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Answer:

Option (D)

Explanation:

The correct answer is: (a) An object gives another object an opposite charge without losing any of its own charge.

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An alternative way to explain Hubble's Law without relying on the standard Big Bang idea of a universe with no center and no edge is through the concept of a "tired light" hypothesis.

According to this hypothesis, the redshift observed in distant galaxies is not due to their motion away from us in an expanding universe, but rather the result of photons gradually losing energy as they travel through space.

In the tired light scenario, the wavelength of light is thought to stretch over time due to interactions with matter or other unknown processes. As a result, the light from distant galaxies appears redshifted, mimicking the effect of cosmic expansion. This explanation implies that the universe may have a finite size and a center, challenging the notion of an infinite and uniformly expanding universe.

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Answer:

Add the coefficient 2 to O2 on the left side of the equation. (O2 represents a molecule of oxygen gas)

The equation shows an equal number of H atoms and C atoms on either side, but the number of O atoms must also balance.

Explanation:

It is formed when a river creates a meander, due to the river's eroding bank. After a long period of time, the meander curves and cuts, forming an oxbow lake.

Answer:

c

Explanation:

I did the test and got it right. I promise :)

Answer:

Explanation:

The frequency is 16.0 Hz. That means that 16 of these waves can pass a single point in 1 second. We are given frequency and wavelength. The equation that relates them is

\(f=\frac{v}{\lambda}\) where f is frequency, v is velocity, and λ is wavelength. Putting all this together:

\(16.0=\frac{v}{97.5}\) and solving for velocity,

v = 16.0(97.5) so

v = 1560 m/s. This wave can travel 1560 meters in a single second!!! Now that we know this velocity, we can use it in a proportion to find our unknown, which is how long, t, it will take to hear this sound 11000m away. (11 km is 11000m):

\(\frac{1560m}{1s}=\frac{11000}{t}\) and cross multiply to get

1560t = 11000 so

t = 7.1 seconds

Answer:

Explanation:

The time taken by the motorcycle to reach the city can be found by using the formula

\(t = \frac{d}{s} \\ \)

d is the distance

s is the speed

From the question

d = 200 miles

s = 70 miles / hour

We have

\(t = \frac{200}{7} \\ = 28.571428 \\ \)

We have the final answer as

Hope this helps you

Answer:

If the person rises 12 ft per revolution that person will

rise 18 ft in 1 and 1/2 revolutions

E = m g h = W h          where W is the weight of the person

E = 149 lb * 18 ft = 2682 ft-lbs

The force acting on the body by its weight is 656.6 N. The displacement for him is 2.4 m. Then the work done is 1595.5 J.

Work done is a physical quantity describing the force acted over a displacement. It is the dot product of force and displacement.

Given that, the weight of the person = 149 lb

1 lb = 0.45 kg

149 lb = 149 × 0.45 = 67 kg.

weight in Newton = 67 kg × 9.8 m/s² = 656.6 N

The displacement he made = 12 ft - 4 ft = 8 ft

1 ft = 0.3 m

then 8 ft = 8 × 0.3 = 2.4 m

Now, work done W = f. ds

W = 2.4 m × 656.6 N = 1595.5 J

Therefore, the work done by the person weighing 149 lb walking exactly one and a half revolution(s) up a circular, spiral staircase of radius 4 ft if the person rises 12 ft after one revolution is 1595.5 J.

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Answer:

c glass

Explanation:

beacause glass is transparent and it would be easier to for refraction

The word that most clearly indicates an imperialistic attitude in this passage is "defend". While the speaker is suggesting that abandoning the colonies would be harmful to the island peoples, they frame their argument in terms of defending and protecting them, rather than respecting their autonomy and allowing them to govern themselves.

The use of the word "lawlessness" also suggests a paternalistic attitude, as it implies that without imperial rule, the colonies would descend into chaos and disorder. It's important to note that this passage reflects the attitudes of many imperial powers throughout history, who often justified their colonization and control of other nations by claiming to be protecting them from their own supposed weaknesses or flaws. It's also worth noting that this perspective has been widely criticized, both in the past and in modern times, for ignoring the agency and self-determination of colonized peoples and perpetuating harmful power imbalances.

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Answer:

The Doppler effect for electromagnetic waves such as light is of great use in astronomy and results in either a so-called redshift or blueshift. It has been used to measure the speed at which stars and galaxies are approaching or receding from us; that is, their radial velocities.

Answer:

the doppler effect for electromagnetic waves such as light is of great use in astronomy anf results in either redshift and blueshift. It has been used used to measure the speed at which stars and galaxies are approaching or receding from us; that is, their radial velocities

Answer:

true

hope this helps !

The time taken for the paper airplane to fly with an initial velocity of 3.5 m/s is 0.36 s (Option A)

Considering the question given, the following data were obtained:

The time can be obtained as follow:

v = u - gt (airplane is going against gravity)

0 = 3.5 - (9.8 × t)

0 = 3.5 - 9.8t

Rearrange

-9.8t = 0 - 3.5

-9.8t = -3.5

Divide both sides by -9.8

t = -3.5 / -9.8

t = 0.36 s

Thus, we can conclude that the time taken for the airplane to fly is 0.36 s (Option A)

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The Sidereal day is different than the Solar day due to the fact that the Earth revolves around the Sun.

The period it takes for a planet to complete one rotation about its axis, as measured against the stars, is known as a sidereal day. In general, the length of a sidereal day varies depending on the planet's rotation speed. A sidereal day on Earth, for example, is around 23 hours, 56 minutes, and 4 seconds long. The sidereal day is different from the solar day due to the fact that the Earth revolves around the Sun. The period it takes for a planet to complete one rotation about its axis, as measured against the Sun, is known as a solar day. The length of a solar day on Earth is around 24 hours long.

Since the Earth's rotation rate varies throughout the year due to its elliptical orbit around the Sun, a solar day is not exactly 24 hours long every day of the year. However, its average length over the course of a year is roughly 24 hours. The difference between a sidereal and solar day is that the Earth rotates on its axis in the same direction as it orbits the Sun, resulting in a small difference in its position each day. As a result, the Earth must rotate slightly more than one full turn for the Sun to return to the same apparent position in the sky.

The sidereal day is the time it takes for the Earth to complete one full rotation about its axis with respect to the stars.

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Hello!

Use the formula:

W = Fd

Replacing:

W = 300 N * 300 m

Resolving:

W = 90000 J

The work is 90000 Joules.

Answer:

1

Explanation:

What you have to do here to get your answer is you have to divide because you are looking for acceleration.You have to divide 300 from 300 and your answer is 1.

F=300N

M=300m

A=1

Hope this helps:)

Mark brainlist pls

Answer:

Heat Input = Work Output       (at 100% efficiency)

ΔQ = ΔW

(you cannot get something for nothing)

To find the volume of a three-dimensional symmetrical shape using integration, we can use the method of cylindrical shells. This method involves dividing the shape into thin cylindrical shells and then integrating their volumes.

Let's say we have designed a symmetrical solid in the shape of a sphere with a cylindrical cavity running through its center. We will place the flat side (R) of the sphere against the x-y plane. The sphere will be revolving around the z-axis since it is symmetrical about that axis.

To find the volume, we first need to determine the equations for the sphere and the cavity.

The equation for a sphere centered at the origin with radius R is:

x^2 + y^2 + z^2 = R^2

The equation for the cylindrical cavity with radius r and height h is:

x^2 + y^2 = r^2,  -h/2 ≤ z ≤ h/2

The volume of the solid can be found by subtracting the volume of the cavity from the volume of the sphere. Using the method of cylindrical shells, the volume of each shell can be calculated as follows:

dV = 2πrh * dr

where r is the distance from the axis of rotation (the z-axis), and h is the height of the shell.

Integrating this expression over the appropriate range of r gives the total volume:

V = ∫[r1, r2] 2πrh * dr

where r1 and r2 are the radii of the cavity and the sphere, respectively.

Substituting the expressions for r and h, we get:

V = ∫[-h/2, h/2] 2π(R^2 - z^2) dz - ∫[-h/2, h/2] 2π(r^2 - z^2) dz

Simplifying and evaluating the integrals, we get:

V = π(R^2h - (1/3)h^3) - π(r^2h - (1/3)h^3)

V =  πh( R^2 - r^2 ) - (1/3)πh^3

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The choice with the highest energy return on energy investment (EROEI) ratio among the options given is:d.Hydroelectric

Hydroelectric power typically has a higher EROEI ratio compared to coal, nuclear, and natural gas, making it the most efficient option in terms of energy production relative to the energy invested.Hydroelectric energy has the highest energy return on energy investment (EROI) ratio. Hydropower is a clean, renewable source of energy with a relatively high EROI, meaning that it produces more energy than is used in its production and operation. Hydroelectricity has an EROI of around 36:1, meaning that for every unit of energy invested, 36 units are returned.

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Answer: 3.00 A

Explanation: The relationship between Voltage, current and resistance is given by the formula V = IR.

By keeping the resistance constant, the voltage is then proportional. This means that by doubling the voltage, the current will also have to be doubled, to satisfy the equation.

(make sure everything is kept in SI units!)