A 40.0-kilogram child exerts a 100.-newton force on a 50.0-kilogram object. the magnitude of the force that the object exerts on the child is: ________

Answer:

B. climate change

Explanation:

asteroids are too big and volaconos are probably gonna create a lot of smoke that can kill ya in seconds so I guess climate change

Answer:

 Scientists at IIT Roorkee are testing a floating device that can generate electricity from flowing surface water of rivers and streams, paving the way for an alternative source of renewable energy.

Explanation:

hope it helps my dear friend.

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Explanation:

Consider a mass of 10 kg, so m = 10

Let's say we apply a net force of 20 newtons, so F = 20

The acceleration 'a' is...

F = ma

20 = 10a

20/10 = a

2 = a

a = 2

The acceleration is 2 m/s^2. Every second, the velocity increases by 10 m/s.

---------------

Now let's double the net force on the object

F = 20 goes to F = 40

m = 10 stays the same

F = ma

40 = 10a

10a = 40

a = 40/10

a = 4

The acceleration has also doubled since earlier it was a = 2, but now it's a = 4.

---------------

In summary, if you double the net force applied to the object, then the acceleration doubles as well.

Acceleration is directly proportional to the net force on an object, and inversely proportional to its mass.

So if an object's mass stays the same while the net force on it doubles, then its acceleration will also double.

We don't know anything about the "trials".  This sounds like it might be a follow-up to a lab experiment that was performed when we weren't there.

We also don't know anything about "question 1".

Answer:

options

Explanation:

The work done in lifting a 1000 N crate 3.0 m high is 3000 Joules (J).

Here, we have been told that the mass of the crate is = 1000 N (i)

We have to lift up the crate to a height of = 3.0 m (ii)

The mass of the crate is given here in Newtons which is also the SI unit of Force.

We know that work is the product of force and distance moved in the direction of the force. The formula used for calculating the work done is

= W = Force * Distance moved (iii)

Using the values of (i), (ii) and putting them in the given formula (iii), we get = W = (1000)*(3)

= W = 3000 Joules

Therefore, we know that the work done in lifting a crate of mass/force to a height of 3.0 m is 3000 J.

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0.001500 m³ block of titanium would weigh approximately 14.915 pounds.

Density is physical property of matter that explains how much mass is contained in any given volume of a substance and in other words, it is the amount of "stuff" (mass) per unit of space (volume).

We calculate the mass of the titanium block using its density and volume: mass = density × volume

mass = 4510 kg/m³ × 0.001500 m³

mass = 6.765 kg

6.765 kg × (1 pound / 0.453592 kg) ≈ 14.915 pounds

Therefore, a 0.001500 m³ block of titanium would weigh approximately 14.915 pounds.

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Answer:

no it is not safe to smoke

Answer:

well its not affecting you lungs or anything. the only way it will affect you is if you eat to much smarties or you choke on it. so yeah it is safe to smoke smarties

Explanation:

Answer: Microtrauma stimulates muscle growth!

Explanation - I hope that helped!

Answer:

(n) alluvial fan sandbar

Explanation:

The option with the smallest mass is e. 0.020 kg of Br2.Option E

To determine which option has the smallest mass, we need to compare the masses of each given quantity.

a. 10.0 mol of F2:

To find the mass, we can use the molar mass of F2, which is 38.0 g/mol. Therefore, the mass of 10.0 mol of F2 is:

10.0 mol * 38.0 g/mol = 380 g

b. 5.50 x 10^24 atoms of 12O:

To find the mass, we need to know the molar mass of 12O. However, the given molar mass is for F2, not for 12O. Therefore, we cannot determine the mass of this option.

c. 3.50 x 10^24 molecules of 12O:

Similarly, without the molar mass of 12O, we cannot determine the mass of this option.

d. 255 g of Cl2:

Since the molar mass of Cl2 is 70.9 g/mol, the number of moles in 255 g can be calculated as:

255 g / 70.9 g/mol = 3.59 mol

e. 0.020 kg of Br2:

The molar mass of Br2 is 159.8 g/mol. To convert 0.020 kg to grams, we multiply by 1000:

0.020 kg * 1000 g/kg = 20 g

Now we can determine the number of moles:

20 g / 159.8 g/mol ≈ 0.125 mol

Comparing the number of moles, we find that option d (255 g of Cl2) has the largest number of moles, indicating a larger mass compared to the other options. Among the remaining options, option e (0.020 kg of Br2) has the smallest mass. Option e

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Since cost = 0 €, the value of sinθ will be 1.  Recall that the Pythagorean identity for sine and cosine states that sin²θ + cos²θ = 1. So, sin²θ = 1 - cos²θ. Given cost=0 €,cosθ=0. Substituting cosθ = 0, we get;sin²θ = 1 - cos²θ.  sin²θ = 1 - 0² = 1Therefore,sinθ = √1 = 1  

This means that sin28 = 1  Since sin20 lies in the first quadrant (0° to 90°), it will have a positive value. To determine sin20, we can use a calculator or reference a trigonometric table. To the nearest tenth of a degree, sin20 is 0.3 and it lies in the first quadrant.

An identity that expresses the Pythagorean theorem in terms of trigonometric functions is known as the Pythagorean trigonometric identity, or simply the Pythagorean identity. It is one of the fundamental relations between the sine and cosine functions, along with the sum-of-angles formulas. The angle can be any real value, and the equation is s i n 2 + c o s 2 = 1. Given both the sine value and the quadrant in which the angle is located, we can use the Pythagorean identity to determine the angle of cosine.

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The steps which enhance strengths and address limitations as a coach include:

This is referred to a professional who gives special training about a particular subject or topic.

It is best to identify weakness and work towards improvement through determination and consistency.

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Answer:

a.tinh do cung k1 va k2 bhsj nshsvsg sjjejsjjsj

First let's see what the funny letters in the equation they gave us means.

F = Gravitational Force

G = Gravitational Constant

m1 = Mass of one of the spheres

m2 = Mass of the other sphere

r = Distance between the two spheres

Ok, now implement it.

\(\frac{9.8 x 10^{2} 1.96 x 10^{2} }{4^{2} }\)

To make it simpler

F = 980 x 196 = 192,080

192,080 ÷ 4²

192,080 ÷ 16

= 12005

F = 12,005N

Answer:

Is this a true and false statement?

Explanation:

Explanation:

Using Equations of Motion :

(1) v = u + at

24 = 6.5 + a * 210

a (Acceleration) = 0.083 m/s^2

(2) v^2 = u^2 + 2aS

S = 576 - 42.25 / 0.166

S (Distance travelled) = 3215.3 m

(Option A seems a typo since the answer is 3215.3 m)

Kinetic energy is the energy when a object is in motion. ...  energy gets transferred to the object,  The energy transferred is kinetic energy, and it depends on the mass and speed.

Explanation:

Answer:

25.2563 m/s

Explanation

This is the equation needed

\($v^2 = u^2 + 2ad$ where v is the final velocity, u is the initial velocity, a is the acceleration, and d the distance\)

So Just plug in!

Answer:

Physics is the natural science that studies matter, its motion and behavior through space and time, and the related entities of energy and force.

Ancient history. Elements of what became physics were drawn primarily from the fields of astronomy, optics, and mechanics, which were methodologically united through the study of geometry. These mathematical disciplines began in antiquity with the Babylonians and with  writers such as Archimedes and Ptolemy.

Answer:

I don't know but It should exist or else reality would not exist

Explanation:

It is because water has a higher heat capacity as compared to the heat capacity of oil.

The amount of heat that must be applied to an object in order to cause a unit change in temperature is known as the heat capacity or thermal capacity of that object. Heat capacity is measured in joules per kelvin (J/K), the SI unit.

Heat capacity is an example of extensive property. A physical quantity which is an extensive property has a value that is proportional to the size of the system it describes or the amount of matter present in the system. C stands for the heat capacity of an object.

Because water has a higher specific capacity than oil and must expend more energy to cool down, it does so more slowly when two equal masses of hot water and oil are allowed to cool.

Therefore, When the equal mass of hot water and oil at the same temperature is allowed to cool water cools slower than the oil.

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The rational basis test might say that government action need only have a reasonable relation to the achievement of a legitimate government purpose to be constitutional.

The rational basis test is a legal standard used by courts to evaluate the constitutionality of government action. Under this test, the government action is considered constitutional if it has a reasonable relationship to a legitimate government purpose.

In other words, the government must demonstrate that there is a rational basis for its action and that it is not arbitrary or discriminatory. Unlike stricter scrutiny tests, such as strict scrutiny or intermediate scrutiny, the rational basis test is more deferential to the government and allows for a wider range of justifications for the action.

It is often applied in cases involving economic regulations or social policies where fundamental rights or suspect classifications are not at issue.

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Answer:

velocity is a vector- its the rate at which an object changes position

acceleration is the rate of change of velocity

Explanation:

hope this helps

take care, stay safe, and live

-kenma kozume #3

Answer:

23 cm from the mirror

Explanation:

Answer:

Accurate at 99.9999746%

Explanation:

First of all, let's calculate how many seconds we have in a year which has 365 days.

1day = 24 × 60 × 60 seconds = 86400 s

Thus, for 365 days, we have;

86400 × 365 = 31536000 seconds

Now, since 1 year has 31536000 seconds, let's find the ratio of efficiency.

We are told that the watch manufacturer claims that its watches gain or lose no more than 8 seconds in a year. Thus, efficiency is given by;

Efficiency = (8/31536000) × 100% = 0.00002536783 %

Thus, it will be be accurate at;

100% - 0.00002536783% ≈ 99.9999746%

Answer:

A

Explanation:

Answer: b. The combination is a mixture because the substances can be separated

Explanation: Based on the facts presented above, the combination of both both substances can be referred to as a mixture due to the following:

A mixture is obtained when two or more substances or materials are combined without a chemical reaction. This is observed when Jalen combined substance 1 and 2 with only one of the substances becoming visible after the combination.

The other reason is that, a mixture can be separated back into its original constituent, this is evident when the combination was filtered with only substance 2 going through the filter and substance 1 remaining in the filter

The greatest beat frequency the listener will receive from this system is approximately 10.88 Hz.

The listener will be able to distinguish the individual beats produced by the two speakers on the rotating turntable.

To solve this problem, we need to consider the relative motion between the speakers and the listener due to the rotation of the turntable.

Given:

Diameter of the turntable: 1.5 m

Rotation speed of the turntable: 75 rpm

Wavelength of sound emitted by each speaker: 31.3 m

(a) To find the greatest beat frequency the listener will receive, we need to determine the relative velocity between the speakers and the listener.

The circumference of the turntable can be calculated using the formula: circumference = π * diameter.

Circumference = π * 1.5 m = 4.71 m.

The distance between the two speakers (which is also the wavelength of sound emitted by each speaker) is 31.3 m.

Since the turntable is rotating, the relative velocity between the speakers and the listener can be calculated using the formula: relative velocity = 2 * π * radius * rotation speed.

The radius of the turntable is half of its diameter, so radius = 1.5 m / 2 = 0.75 m.

Relative velocity = 2 * π * 0.75 m * (75 rotations/min * 1 min/60 s)

Relative velocity = 2 * π * 0.75 m * (75/60) s^(-1)

Relative velocity = 2.36 m/s.

The beat frequency can be calculated using the formula: beat frequency = |velocity of sound / wavelength of sound emitted by each speaker - relative velocity / wavelength of sound emitted by each speaker|.

The velocity of sound is approximately 343 m/s.

Beat frequency = |343 m/s / 31.3 m - 2.36 m/s / 31.3 m|

Beat frequency = |10.96 Hz - 0.075 Hz|

Beat frequency = 10.88 Hz (rounded to two decimal places).

Therefore, the greatest beat frequency the listener will receive from this system is 10.88 Hz.

(b) To determine if the listener will be able to distinguish individual beats, we need to compare the beat frequency with the listener's ability to perceive separate frequencies.

The human ear can typically perceive individual beats when the beat frequency is below 20 Hz. In this case, the beat frequency is 10.88 Hz, which is below the threshold for distinguishing individual beats.

Therefore, the listener will be able to distinguish the individual beats produced by the two speakers on the rotating turntable.

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Milky way galaxy is about 100,000 light-years in diameter.

Milky way galaxy is the galaxy where our solar system is included is formed approximately 14 billion years ago. It got the name because of its appearance while viewed from Earth.

Ancient astronomers believed that all stars and planets of the universe is in milky way galaxy.

The number of stars in milky way galaxy is estimated at around 100-400 billion in number.

Sagittarius A is the blackhole that situated in the centre of Milky way galaxy.

It is approximated that Milky way galaxy moves at a velocity of 600 km/s and it is expanding at a rate of 500 m/s.

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