This pendulum is at

minimum displacement
maximum displacement
equilibrium

According to the law of conservation of energy, energy can neither be created nor destroyed but is transformed from one form to another.

1) The statement that is true about the magnets involved is that; "kinetic energy and velocity are at zero when the magnets are held apart, and both increase rapidly when they are released and move together. Energy stored in the magnetic field decreases."

2) In the second question, the statement that is correct about the energies of the system is that the energy stored in the system is converted to kinetic energy.

3) When a magnet is moved close to a rubber band, the energy stored in the magnetic field does not change.

4) In the fourth question, some of the energy stored is converted into kinetic, thermal, and gravitational energy.

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Answer:the correct answer is: the energy stored in the system is converted to kinetic, thermal and sound energy

Explanation:

Answer: 2kg

Explanation:

This problem is a textbook conservation of momentum problem. The intial momentum is equal to the final momentum. For the initial state of each block, only the first one was moving. Then they both combine to move together.

Pi = Pf

with p = mv

(6kg)*(4m/s) = (6kg+xkg)(3m/s)

Let x equal the unknown mass of block 2

24 = 18 + 3x

6 = 3x

x = 2kg

Answer:

An archers bow that is drawn back

Answer:

A)a diver standing on a diving platform.

REQUESTS/REQUIERMENTS:

BRAINLIEST PLEASE

This frequency definition leads us to the simplest frequency formula: f = 1 / T . f denotes frequency and T stands for the time it takes to complete one wave cycle measured in seconds. The SI frequency unit is Hertz (Hz), which equals 1/s (one cycle per second)

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C.) Year

i hope this helped! please mark me as brainliest and 5 stars >:)

Answer:

I believe it's C. Year.

Explanation:

Hope this helps! ^^

Answer:

50.37 m/s and 40ms object

Answer: i think they control the eyes to move them.

Explanation:

Answer:

CDBA

Explanation:

Just did it on Study island

The correct sequence of steps for lighting a Bunsen burner would be C, D, B, A, therefore the correct answer is option D.

Thermal energy sometimes referred to as heat energy, may be described as the type of energy in which heat is transmitted from one body to another body as a result of their molecular motions.

The following would be the proper procedure for lighting a Bunsen burner:

Link the gas outlet and the burner hose.

The gas output valve should be opened.

Open the Bunsen burner's base-mounted gas adjustment valve.

The Bunsen burner's barrel should be covered with the spark.

Thus, the right response is option D since the proper stages to ignite a Bunsen burner are C, D, B, and A.

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Answer: A, to inform people of when, how, and why to wash their hands.

Explanation: in the poster it shows when you should wash your hands, how you should wash your hands, and why its important to wash your hands! Please give brainliest!

The statement on the CDC  poster is meant to to inform people of when, how, and why to wash their hands.

Hand washing is a very important way of stopping the spread of infectious diseases. We saw this especially during the pandemic when there was a wider call for hand washing.

The statement  “Stop Germs! Wash Your Hands” on the CDC  poster is meant to to inform people of when, how, and why to wash their hands.

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Answer:

Explanation:

In order to find kinetic energy, you need information about the velocity. Speed is the magnitude of the velocity.

Kinetic energy is 1/2mv^2

m being mass

v being velocity

The kinetic energy of an object is directly proportional to the speed of the object. If we double the speed of the object then the kinetic energy of the object will increase by a factor of four or four times.

Kinetic energy is the energy which is present in an object which has because of its motion. If we want to accelerate an object, then we must apply the force of some magnitude. Applying a force, requires us to do some work. After the work has been done, then the energy has been transferred to the object, and the object will be moving with a new constant speed.

Kinetic energy is directly proportional to the mass of the object and to the square of its speed or velocity:

K.E. = 1/2 m × v²

If the mass has the units of kilograms and the velocity of meters per second, then the kinetic energy has units of kilograms-meters squared per second squared.

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The chemical symbol for nitrogen is N

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Chemical symbol for nitrogen is :

Explanation:

lanthanide is another name for the rare earth

elements.

Answer:

use common sense

Explanation:

Answer:

Explanation:

Meters per second

Answer:

m/s (meters per second)

Explanation:

Answer:

4,000

Explanation:

Answer:

2000

Explanation:

Answer:

they are equal and act in opposite directions

Explanation:

newton's third law of motion states that if object A exerts a force on object B, then object B will exert an equal but opposite in direction force.

hope it helps, I think my response was late,

Answer:a licensed physician

Explanation: taking the osha test now.

A licensed physician is the one to carry out a post-exposure medical evaluation. (Option A)

Post-exposure Medical Evaluation is any medical evaluation started after exposure to a pathogen in order to prevent the infection from occurring.

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Answer:

extrusive igneous rock

Answer:

I believe its C: Secretary of War. I hope this helped :)

Explanation:

Secretary of Homeland Security was not a department in Washington's first cabinet. So, the correct option is B.

George Washington created the nation's first cabinet, made up of the president's most trusted advisers, where advisers advise the president on laws, taxes, foreign affairs, defense, and other important issues on how to govern the United States.

George Washington's first cabinet was consists of attorney and postmaster generals and secretaries of state, treasury, and war. This cabinets included four original members which are as follows: Secretary of State Thomas Jefferson, Secretary of Treasury Alexander Hamilton, Secretary of War Henry Knox, and Attorney General Edmund Randolph.

Therefore, the correct option is B.

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You need to know the time as well.

Answer:

0.2m

Explanation:

F = 6 x 10^3N

k = 3 x 10^4 Nm-1

x = ?

from Hooke's law, F = kx

x = F/k = 6 x 10^3 ÷ 3 x 10^4 = 0.2m

Answer:

a.ionic bond is kinds of bonds make up a formula unit of sodium chloride.

Answer:

A

Explanation:

Answer:

Potential energy is the energy that exists by virtue of the relative positions (configurations) of the objects within a physical system.

This form of energy has the potential to change the state of other objects around it, for example, the configuration or motion.

Various forms of energy can be grouped as potential energy.

Each of these forms is associated with a particular kind of force acting in conjunction with some physical property of matter (such as mass, charge, elasticity, temperature etc).

For example, gravitational potential energy is associated with the gravitational force acting on object's mass; elastic potential energy with the elastic force (ultimately electromagnetic force) acting on the elasticity of a deformed object; electrical potential energy with the coulombic force; strong nuclear force or weak nuclear force acting on the electric charge on the object; chemical potential energy, with the chemical potential of a particular atomic or molecular configuration acting on the atomic/molecular structure of the chemical substance that constitutes the object; thermal potential energy with the electromagnetic force in conjunction with the temperature of the object.

For an example of gravitational potential energy, consider a book placed on top of a table.

To raise the book from the floor to the table, work must be done, and energy supplied. (If the book is lifted by a person then this is provided by the chemical energy obtained from that person's food and then stored in the chemicals of the body.) Assuming perfect efficiency (no energy losses), the energy supplied to lift the book is exactly the same as the increase in the book's gravitational potential energy.

The book's potential energy can be released by knocking it off the table.

As the book falls, its potential energy is converted to kinetic energy.

When the book hits the floor this kinetic energy is converted into heat and sound by the impact.

Explanation:

Answer:

potential energy is basically stored energy

Explanation:

Answer:

The focal length of the given spherical mirror is 20cm.

Explanation:

plz follow me

Explanation:

Irfan should take care that the mirror has to be 1/2 of his height and it is

there is not any other specification to be looked at and irfan's height is 180 cm

Answer:

50 x 3000 = 150000/4000 = 37.5

37.5 I think.

Explanation:

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A 3000 kg truck travelling at 50km/hr strikes a stationary 1000 kg car, locking the two vehicles together, the final velocity of the two vehicles after the collision is approximately 10.43 m/s.

We may use the concept of conservation of momentum to calculate the final velocity of the two vehicles after the collision.

The total initial momentum (P_initial) is given by:

P_initial = (mass of truck) * (initial velocity of truck) + (mass of car) * (initial velocity of car)

P_initial = (3000) * (50) + (1000) * (0)

The velocity:

Vt = 50 * (1000/3600) = 13.9 m/s

Vc = 0 = 0 m/s

P_initial = (3000) * (13.9) + (1000) * (0 )

P_initial = 41700 kg·m/s

P_initial = P_final

41700 kg·m/s = (3000 kg + 1000 kg) * Vf

41700 kg·m/s = 4000 kg * Vf

Now Vf:

Vf = 41700 kg·m/s / 4000 kg

Vf ≈ 10.43 m/s

Therefore, the final velocity of the two vehicles after the collision is approximately 10.43 m/s.

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Answer:

In constructive waves, a greater amplitude wave is formed. In destructive waves, a wave with a smaller amplitude is formed. (option A)

Explanation:

Interference is called the superposition or sum of two or more waves. Depending mainly on the wavelengths, amplitudes and the relative distance between them, there are two types of interference: constructive or destructive.

Constructive interference occurs when there are two waves of identical or similar frequency (both have motions equal to an even number of similar wavelengths) and overlap the peak of one with the peak of the other. These effects add together and make a wave of greater amplitude. All of this is possible because the waves were in the same phase in the beginning (in the same position).

Destructive interference occurs in the opposite case to constructive. When the crest of one wave overlaps the valley of the other, they cancel out since they are in different phases when they overlap (they were in different positions). That is, as in the case of constructive waves they were added, in the case of destructive waves they cancel out (subtract).

So, In constructive waves, a greater amplitude wave is formed. In destructive waves, a wave with a smaller amplitude is formed.

The point in the compass needle has the opposite polarity from Earth’s north pole. The correct option is B.

The compass needle A magnetized pointer within a compass that can freely align with the Earth's magnetic field.

The magnetic needle is the most important part of the compass. It swings around the compass as you move, but the red end always points north and the white (or sometimes black) end always points south.

If you mean the geographical North Pole, the needle would point south because that is the only way to get there; more specifically, it would point south along the 112.4 degrees west longitude meridian towards the magnetic north pole at 82 degrees north, where compasses point.

Thus, the correct option is B.

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Answer:

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