In 2D kinematics, which of the following variables is not a vector and therefore cannot be split into x and y components? 1) Displacement 2) Time 3) Acceleration 4) Velocity​

Answer:

The time required is 0.45 s.

Explanation:

Height, h = 1 m

initial velocity, u = m/s

Let the time is t.

Use second equation of motion

\(h = u t + 0.5 at^2\\\\1 = 0 +0.5 \times 9.8 \times t^2\\\\t = 0.45 s\)

The Force acts on the big piston is 1350000 N

"The force exerted on each piston of a hydraulic press is proportional to the surface area of the piston. If the area ratio of the two pistons is 1:300, this means that the larger piston has an area 300 times greater than the smaller piston.

Let A1 be the area of the smaller piston and A2 be the area of the larger piston. Then, we have:

A2 = 300 * A1

According to Pascal's law, the pressure in a closed system is transmitted equally throughout the system. Therefore, the pressure on both pistons is the same. Let P be the pressure on each piston.

The force on each piston can be calculated using the formula:

force = pressure * area

For the smaller piston, we have:

force1 = P * A1

For the larger piston, we have:

force2 = P * A2

Substituting A2 = 300 * A1, we get:

force2 = P * 300 * A1

We know that a force of 15 N acts on the smaller piston (force1 = 15 N). We can now set up an equation to solve for the force on the larger piston (force2):

force1 = force2

P * A1 = P * 300 * A1

Simplifying the equation, we get:

P = P * 300

Dividing both sides by P, we get:

300 = A1 / A2

Substituting A2 = 300 * A1, we get:

300 = A1 / (300 * A1)

Multiplying both sides by 300 * A1, we get:

90000 * A1 = A1

Dividing both sides by A1, we get:

A2 = 90000

Therefore, the area of the larger piston is 90000 times greater than the area of the smaller piston. Now we can use the formula for force:

force2 = P * A2

We know that the force on the smaller piston is 15 N, and the area ratio is 1:300. Therefore, the force on the larger piston can be calculated as follows:

force2 = P * A2

force2 = P * 90000 * A1

force2 = 15 N * 90000

force2 = 1,350,000N

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Elastic energy is a type of potential energy. It is the energy stored in an elastic material when it is stretched or compressed.

Potential energy is a type of energy that is stored within an object due to its position or configuration. It is the energy that an object possesses by virtue of its position, shape, or state, and has the potential to do work.

Potential energy can be converted into kinetic energy, which is the energy of motion, when the object is allowed to move or fall. The total energy of a system, including both potential and kinetic energy, is conserved, meaning it remains constant unless acted upon by external forces.

Elastic energy is a type of potential energy. It is the energy stored in an elastic material when it is stretched or compressed. When an elastic material such as a spring is stretched or compressed, work is done on it, and this work is stored in the form of elastic potential energy. This potential energy can be released when the material returns to its original shape, causing it to vibrate or move.

Therefore, elastic potential energy is a type of potential energy that can be converted into kinetic energy as the material moves back to its original shape.

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Question: A negative 6 mC charge enters a region of 45 T magnetic field that is directed up. If the charge is moving toward the south with a speed of 400 m/s. determine the magnitude and  direction of the force

Answer:

Magitude of F = 108 N

Direction: Perpendicular to the plane containing v and B.

Explanation:

From the question,

Since the velocity of the charge(v), is parallel to the field(B).

Therefore, We apply

F = qvB..................Equation 1

Where F = Force, B = magnetic field, v = velocity, q = Charge.

Given: q = 6 mC = 0.006 C, v = 400 m/s, B = 45 T

Substitute these values into equation 1

F = 0.006×400×45

F = 108 N.

The direction of the force is always perpendicular to the plane containing v and B.

\(\\ \tt\longmapsto Acceleration=\dfrac{v-u}{t}\)

\(\\ \tt\longmapsto Acceleration=\dfrac{25-0}{30}\)

\(\\ \tt\longmapsto Acceleration=\dfrac{25}{30}\)

\(\\ \tt\longmapsto Acceleration=0.8m/s^2\)

Answer:

A carpet transfers more energy to heat than the floor, I believe.

Explanation:

There is more friction on the carpet creating more heat and energy loss. Potential energy is gained from being at a higher elevation.

Once the match is lit, you will have a flame that can be used to light any of the other items, depending on your preference or specific needs.

In this scenario, you are in a pitch-dark room with a candle, a wood stove, and a gas lamp. To bring light into the room, you need to decide which item to light first, using the match that you have.

Considering the available options, the answer to this question is that you should light the match first. This is because, without a source of ignition, none of the other items (candle, wood stove, or gas lamp) can be lit.

For example, if you want a quick and temporary source of light, you might choose to light the candle. If you require a more sustainable and brighter light source, the gas lamp might be more appropriate. On the other hand, if you are looking for warmth along with some light, you might opt to light the wood stove. However, the crucial step is to light the match first, as it provides the necessary flame to ignite the other items.

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The length of the spring wire varies during the process but ultimately returns to its original length.

During the process described, the total length of the spring wire will vary. Let's break it down step by step:

1. Initially, an external tensile force of 8,000 lbf is applied to the spring. According to Hooke's Law, the elongation of the spring can be calculated using the formula:

\(\[\Delta L = \frac{F}{k}\]\)

where \(\(\Delta L\)\)is the change in length,\(\(F\)\) is the force applied, and\(\(k\)\) is the spring constant. Plugging in the values, we get:

\(\[\Delta L = \frac{8,000 \, \text{lbf}}{400,000 \, \text{lbf/in}} = 0.02 \, \text{in}.\]\)

2. After 30 minutes, the external load is reduced to 4,000 lbf. The spring will still be stretched by the same amount as before, so the length remains unchanged at 4.00 in + 0.02 in = 4.02 in.

3. The load is held constant at 4,000 lbf for another 30 minutes. Since the load is constant, the length of the spring will also remain constant at 4.02 in.

4. Finally, when the load is completely removed, the spring will return to its original length of 4.00 in.

Therefore, the total length of the spring wire during this process, from longest to shortest, is:

1. 4.02 in

2. 4.00 in

In conclusion, the length of the spring wire varies during the process but ultimately returns to its original length.

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Answer:

Glycolysis

Pyruvate

Krebs Cycle

Electron Transport Chain

Explanation:

The concept map on ATP production shows the process of cellular respiration in living organisms.

Cellular respiration begins with glucose which is broken down in the process of glycolysis that occur in cytoplasm and gives 2 ATP. Glycolysis gives pyruvate as end product that enter in the process of Krebs Cycle or citric acid cycle as a aerobic process, that occur in mitochondria and produces 2 ATP. This energy is then used in Electron Transport Chain to pump high energy electrons and H+ that produces 36 ATP.

Answer:

please help

Explanation:

Answer:

Batteries are systems that store chemical energy and then release it as electrical energy when they are connected to a circuit. Batteries can be made from many materials, but they all share three main components: a metal anode, a metal cathode and an electrolyte between them. The electrolyte is an ionic solution that allows charge to flow through the system. When a load, such as a light bulb, is connected, an oxidation-reduction reaction occurs that releases electrons from the anode while the cathode gains electrons

Explanation:

This is because spray sunscreens contain fewer ingredients and preservatives than cream sunscreens.

What is sunscreen?
Sunscreen, also referred to as sunblock as well as sun cream, is a topical photoprotective product for the skin that primarily absorbs or, to a much lesser extent, reflects some ultraviolet (UV) radiation from the sun. This helps prevent sunburn and, more importantly, skin cancer. Lotions, sprays, hydrocolloids, foams, sticks, powders, as well as other topical products are all forms of sunscreen. Sunscreens are common additions to clothing, especially sunglasses, sunhats, and other types of photoprotective clothing (such as umbrellas). H.A. Milton Blake, an Australian chemist, created the first sunscreen in 1932 using a 10% concentration of the UV filter salol (phenyl salicylate).

Since they do not contain as many active ingredients, they are less likely to expire quickly. Additionally, because the sunscreen is in a spray form, it is less likely to be contaminated with bacteria or dirt, which can cause it to expire more quickly.

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Answer:

Please mark as Brainliest!!

Explanation:

He will not succeed as it blows the trumpet harder that only increase the amplitude of the sound wave that means the intensity of the sound will increase but the frequency remains the same.

Answer:

he wont

Explanation:

Answer: Half of an object's mass (1/2*m) multiplied by the velocity squared

Explanation:

In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.  

Hope this helps! <3

Answer:

Electrons are negatively charged and are deflected on a curving path towards the positive plate. Neutrons have no charge, and continue on in a straight line.

The particle will be deflected toward the positive plate as it enters the electric field is an electron.

The electric field is the region of space in which the particle experiences the electrostatic force.

As the plate is positive, so to deflect any particle towards it, the particle must be negatively charged.

An electron is a particle that has a negative charge.

The particle will be deflected toward the positive plate as it enters the electric field.

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When traveling on a forklift, the carried load must be secured and stable.

What is a forklift? A forklift is a powered industrial truck that is used to lift and move materials over short distances. A forklift is equipped with two prongs that slide beneath a load, allowing the operator to raise and move large and heavy items. Forklifts are frequently used in warehouses, factories, and other commercial settings for a variety of tasks, including loading and unloading trucks, transporting goods, and stacking products on shelves.

Forklifts are powerful machines that can carry loads weighing thousands of pounds. When traveling on a forklift, the carried load must be secured and stable. A secure and stable load should not shift or slide during transportation, as this can lead to accidents and injuries.

Therefore, when traveling on a forklift, the carried load must be secured and stable.

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Answer:

In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

Explanation:

The three tenets to the cell theory are as described below:

All living organisms are composed of one or more cells.

The cell is the basic unit of structure and organization in organisms.

Cells arise from pre-existing cells.

There is no universally accepted definition of life. Some biologists consider non-cellular entities such as viruses living organisms,[1] and thus reasonably disagree with the first tenet. Throughout this article, it will lead you through the history of cell theory, how the discovery of cells was made possible, what the cell theory has become today and background information and history regarding other opposing concepts of cell theory.

Answer:

As newton's 1st Law states that " A body tends to be at rest or in motion until an external force is  applied "

Explanation:

so football will remains at rest until you kick it or stop it with your hands

Answer:  metals, non metals and semi metals

Explanation:

Answer: Yes

Explanation: It has space in its valence shell for an additional electron.

The answer to this question is yes, a neutral hydrogen atom does have an attraction for an additional electron. This attraction arises from the fact that the positively charged proton in the nucleus of the atom attracts negatively charged electrons. When an additional electron is brought near the hydrogen atom, it will be attracted to the positively charged proton in the nucleus. The attraction between the proton and the electron is quantified by Coulomb's law.

Neutral hydrogen atoms consist of a single proton in the nucleus and a single electron in the outer shell. The electron is negatively charged, while the proton is positively charged. Thus, the electron and the proton are attracted to each other by the electromagnetic force, creating a stable neutral atom. The question asks whether the neutral hydrogen atom has an attraction for an additional electron.

Coulomb's law states that the force between two charged particles is proportional to the product of their charges and inversely proportional to the distance between them. In the case of the hydrogen atom, the force between the electron and the proton is given by:

F = kq1q2/r^2

where F is the force, k is Coulomb's constant, q1 is the charge of the electron, q2 is the charge of the proton, and r is the distance between them.

Since the electron has a negative charge and the proton has a positive charge, their product (q1q2) is negative, which means the force between them is attractive. As the distance between the electron and the proton decreases, the force between them increases. Therefore, when an additional electron is brought near the hydrogen atom, it will be attracted to the positively charged proton in the nucleus.

However, there is a limit to how many electrons can be added to a hydrogen atom. When a second electron is added, it will be repelled by the first electron, and the repulsive force between the two electrons will become stronger than the attractive force between the electron and the proton. This means that adding a second electron to a hydrogen atom requires more energy than adding the first electron. In fact, the energy required to add a second electron is so high that it is unlikely to occur under normal conditions. Therefore, a neutral hydrogen atom can attract an additional electron, but it can only form a negative ion with a single additional electron.

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The new orbital speed after friction from the Earth's upper atmosphere has done -7.5x\(10^{9}\) J of work on the satellite is approximately 7489 m/s.

We can use the work-energy principle to solve this problem. The work done by the atmosphere is equal to the change in kinetic energy of the satellite

W = ΔK

Where W is the work done by the atmosphere and ΔK is the change in kinetic energy. We can find the initial kinetic energy of the satellite using the formula

K = (1/2)m\(V^{2}\)

Where m is the mass of the satellite and V is its initial velocity.

Since the problem does not provide the mass of the satellite, we can assume it is constant and cancel it out in the equations. Thus, we can write

W = ΔK = (1/2)m\(Vf^{2}\) - (1/2) m\(Vi^{2}\)

Where Vf is the final velocity of the satellite and Vi is its initial velocity.

Substituting the given values, we have

-7.5x\(10^{9}\) J = (1/2)m\(Vf^{2}\) - (1/2) m\(Vi^{2}\)

We also know that the initial orbital speed of the satellite is equal to the velocity required for circular motion at its altitude, which can be calculated using the formula

V = √(GM/r)

Where G is the gravitational constant, M is the mass of the Earth, and r is the distance between the satellite and the center of the Earth.

Substituting the given values, we have

Vi = √[(6.67x\(10^{-11}\)N\(m^{2\)/\(Kg^{2}\))(5.97x\(10^{24}\) kg)/(6.67x\(10^{6}\)m)] = 7646 m/s

Solving for the final velocity, we have

Vf = √[2(-7.5x\(10^{9}\) J)/(m) + \(Vi^{2}\)]

The mass of the satellite cancels out, and we get

Vf = √(2(-7.5x\(10^{9}\) J)/(\((7646m/s)^{2}\) + \((7646m/s)^{2}\) ) ≈ 7489 m/s

Therefore, the new orbital speed after friction from the Earth's upper atmosphere has done -7.5x\(10^{9}\) J of work on the satellite is approximately 7489 m/s.

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Answer: A wavelength is how long ONE wave is. First divide the distance of the whole diagram by the number of waves. you will get 2m. This is the answer.

Answer:

Acceleration, a = -0.5 m/s²

Explanation:

Given the following data;

Initial velocity = 72 km/h

Final velocity = 18 km/h

Time = 10 seconds

To find the acceleration of the car;

Conversion:

72 km/h to m/s = 72*1000/3600 = 20m/s

18 km/h to m/s = 18*1000/3600 = 5 m/s

In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.

This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.

Hence, if we subtract the initial velocity from the final velocity and divide that by the time, we can calculate an object’s acceleration.

Mathematically, acceleration is given by the equation;

\(Acceleration (a) = \frac{final \; velocity - initial \; velocity}{time}\)

Substituting into the equation;

\(a = \frac{5 - 20}{10}\)

\(a = \frac{-5}{10}\)

Acceleration, a = -0.5 m/s²

Therefore, the car is decelerating.

Answer:

The main idea is energy conservation.

Answer:

Wave-Particle Duality.