Which graph above shows the highest pitch?

Answer:

40N

Explanation:

F=ma

F= 5 × 8 = 40N

.......

Answer: C

Explanation:

Energy stays the same, but there’s more kinetic energy the less it moves and mor kinetic energy the more it moves

The conservation of energy allows us to find the correct answer for how the change in mechanical energy is:

    C. stays the same, but is converted between potential and kinetic energy.

The mechanical energy of bodies is the sum of the kinetic energy due to motion and the potential energies due to the configuration of the system.

If there is not friction in the system, that is, there are no dissipative forces, the mechanical energy must be conserved at all points, this is one of the important conservation laws of physics.

When applying this theorem to the case of the car moving, the energy is converted from potential to kinetic, on the path from A to B and is transformed from kinetic to potential on the path from B to C, but the total value of the mechanical energy remains constant.  

Let's analyze the different claims:

A. False. The stable energy conservation theorem that must be constant at all points.

B. False. Must be constant.

C. True. According to the analysis, the mechanical energy is constant and transforms between potential and kinetic.

D. False. As there is no friction, the energy is not lost.

In conclusion using the conservation of energy we can find the correct answer for the transformation of mechanical energy is:

      C. Stays the same, but is converted between potential and kinetic energy.  

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Answer:

planet y

Explanation:

Answer:

y

Explanation:

Answer:

Belgium

France

Luxembourg

Explanation:

These are the ones that are in the High Productivity chart, but not in the HDI chart

The countries have high productivity, but are not among the top 10 for human development are Belgium, France and Luxembourg.

Productivity is the making the maximum use of any product or time or machine.

The ones that have high productivity, but not in the human development chart are Belgium, France and Luxembourg.

The productivity is also achieved by the humans, but what if human is not developing.

Productivity and human development must be on the same balance for any country.

Thus, correct options are  Belgium, France and Luxembourg.

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#SPJ2

The answer is: B.

speeds above 343 m/s.

:)

Supersonic speeds is speed which is above 343. Hence option B is correct.

Speed is a rate of change of distance with respect to time. i.e. v=dx÷dt. Speed can also be defined as distance over time i.e. speed= distance ÷ time. It is denoted by v and its SI unit is m/s. it is a scalar quantity. Speed shows how much distance can be traveled in unit time.

To find dimension for speed is,

from formula Speed = Distance ÷ Time

Dimension for distance is [L¹] ,

Dimension for Time is [T¹],

Dividing dimension of distance by dimension of time gives,

[L¹] ÷ [T¹] = [L¹T⁻¹]

Dimension for speed is [L¹T⁻¹].

Supersonic speed is the speed of an object that is above the speed of sound. For objects traveling in dry air of a temperature of 20 °C. Speed of the sound is 343 m/s in dry air.

Hence Option B is correct.

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#SPJ3.

Answer:

b

i remember this question from when i had a test to take.

Answer:

35.72 m

Explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 2.7 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (0 m/s) (2.7 s) + ½ (9.8 m/s²) (2.7 s)²

Δx = 35.72 m

Answer:

I think the answer is the Earth's weather and climate system represent complex. Hope it helps!

Answer:

[tex]|M_y| = 170.82 \ N.mm[/tex]

Explanation:

From the diagram affixed below completes the question

Now from the diagram; We need to resolve the force at point  A into (3) components ; i.e x.y. & z directions which are equivalent to [tex]F_x \ , F_y \ , F_z[/tex]

So;

[tex]F_x[/tex] = positive x axis

[tex]F_y =[/tex] Negative y axis

[tex]F_z[/tex] = positive z axis

Then;

[tex]|M_x| = F_y *27-F_z*11 = 77 ----- equation(1) \\ \\ |M_z| = F_y*4 - F_x*11 = 81 ---- equation (2) \\ \\ |M_y| = F_x *27 - F_z *4 = ? ---- equation (3)[/tex]

From equation (1); Let's make [tex]F_y[/tex] the subject of the formula ; then :

[tex]F_y = \frac{77+11F_z}{27}[/tex]

Substituting  the value for [tex]F_y[/tex] into equation (2) ; we have:

[tex](\frac{77+11F_z}{27})4-F_x*11=81 \\ \\ 11(\frac{7+F_z}{27} ) 4- F_x -11 =81 \\ \\ 28+4 F_z - 27F_x = \frac{81*27}{11} \\ \\ 4F_z - 27F_x = 198.82 -28 \\ \\ 4F_z - 27F_x = 170.82 \\ \\ Since \ |M_y| = 4F_z-27F_x \\ \\ Then: \\ \\ \\ |M_y| = 170.82 \ N.mm[/tex]

Answer:

kinetic energy depends on both positive and negative energy

Explanation:

Answer:

Kinetic energy depends on both speed and time

Answer:

A charged battery that is NOT part of a circuit is an example of potential energy.

Answer:

I think that the answer is B

Answer: negative acceleration

Explanation:

Acceleration is speeding up, the ball is slowing down making it negative acceleration

Answer:

4th option

Explanation:

Answer: Newton's law of universal gravitation is usually stated that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

Answer:

Newton’s law of gravitation, statement that any particle of matter in the universe attracts any other with a force varying directly as the product of the masses and inversely as the square of the distance between them.

Answer:

got this on google and got it right

Explanation:

An example of inductive logic is, "The coin I pulled from the bag is a penny. ... Even if all of the premises are true in a statement, inductive reasoning allows for the conclusion to be false. Here's an example: "Harold is a grandfather. Harold is bald.

Inductive reasoning is when someone observes data, recognizes patterns within these observations, and then draws a conclusion on these observations that they found.

Let's look at an example.

A 12-oz. coke bottle exploded after an hour in the freezer.

A second 12-oz. coke bottle exploded after an hour in the freezer.

The reasoning that was used here was inductive reasoning.

Although we might want to test a few more 12-oz. coke bottles, we can tentatively conclude that all 12-oz. coke bottles will explode after an hour in the freezer.

Since were using oneservations and recognizing patterns to draw a

conclusion, our conclusion is based on inductive reasoning.

An example of the change in the chemical is option a. the wick burning.

A chemical change occurs at the time when the one chemical substance should be converted into one or more distinct substances like iron becoming rust.

It should arise via the chemical reaction process and the substance should contain different kind of properties since it contains the atoms and molecules are arranged in the different manner.

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Answer

gravity

Explanation:

Answer:

The Correct Answer is: 2,3,and 6

Explanation:

There are  

2

 Fe (iron) atoms.

There are  

3

 O (oxygen) atoms.

There are  

6

 H (hydrogen) atoms.

Answer:

the photo says all da answers

Answer:

The population will increase because grasshoppers are the prey.

Explanation:

If there has been a significant decrease in the praying mantis population in recent years. This most likely affect the grasshopper population over time by the population will increase because grasshoppers are the prey. If there is less praying mantis then grasshoppers won't be eaten as much so the population of the grasshoppers will thrive

Answer:

The population will increase because grasshoppers are the prey.

Explanation:

Answer:

a body is projected harizontally with a velocity of 25m/ s of a tower for high caculate 1 the time of flight 2 the harizontal range 3 the velocity with which it lit the ground

Explanation:

What is a coulomb?

The coulomb is defined as the quantity of charge that passes through the cross section of an electrical conductor carrying one ampere for one second.

Coulomb (symbolized C) is the standard unit of electric charge in the International System of Units (SI). It is a dimensionless quantity. A quantity of 1 C is equal to approximately 6.24 x 10^18

Answer:

Long terms:

-earth its self

-economy (money)

-death

Short term:

- dirty

-damage houses

- roofing

-electricity

Explanation:

Answer:

magnetic, gravity, electrostatic all are field forces

Explanation:

help this help! :)

Among the options provided, both magnetic force and electric force are examples of field forces. Thus, option 1 and 2 is correct.

Magnetic force arises due to the interaction between moving charges or magnetic dipoles in a magnetic field. It is responsible for phenomena such as the attraction or repulsion between magnets, the operation of electric motors, and the behavior of charged particles moving through magnetic fields. Magnetic fields are produced by moving charges or currents, creating a force that acts on other moving charges within the field.

Electric force, similarly, arises from the interaction between charged particles within an electric field. This force is responsible for the attraction or repulsion between charged objects, the operation of devices like capacitors, and the behavior of charged particles in electric fields. Electric fields are created by static charges or changing magnetic fields, exerting a force on other charged particles within the field.

Both magnetic and electric forces are examples of field forces because they are transmitted through fields (magnetic or electric fields, respectively) and act at a distance without direct contact between the interacting objects. Conversely, normal force and gravitational force are contact forces, as they require physical contact between objects to manifest.

C. Thick wire and cold temperature.

Explanation:

The resistance of a wire is given by:  R = (ρL)/A

where ρ is the resistivity of the material, L is the length of the wire, A is the cross-sectional area of the wire.

From the formula, we see that the thicker the wire, the larger A, therefore the smaller the resistivity. so, a thick wire will have lower resistivity.

Moreover, the resistance of a wire increases with the temperature. In fact, high temperatures mean more motion of the atoms/electrons inside the wire, so more resistance to the flow of current through it. Therefore, colder temperature means lower resistance.

So, the correct option is thick wire and cold temperature.

Answer:

C. Thick wire and cold temperature.

Explanation: