A longitudinal wave is a wave of which the disturbance direction is the same direction of the direction of the wave. Waves done in a spring and sound waves are an example.

A longitudinal wave:

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if the strip will flat we can measure its thickness easily but if it is not flat i.e. its surface is irregular then it will thick only from some points and its other area will

be thin and we cannot measure its thickness easily.same is the reason for wire.

24

hours

The purpose of a clipping path in graphic design is to isolate an object or element from its background. This allows designers to manipulate the object independently, apply effects or adjustments to it, or place it against a different background without affecting the surrounding elements. Clipping paths are commonly used in product photography, e-commerce, advertising, and various other design contexts where precise object isolation is required for professional presentation.

Viscosity of a fluid is mainly influenced by the friction caused by the interactions between its molecules. Therefore a dishwashing liquid or reagent does not affect the viscosity of water, it only affect its surface tension. .

[object Object]

Acceleration(a) = [final velocity(v) - initial velocity(u)] / time(s)

Algebrtaically

a = [ v - u ] / s

A negative result indicates deceleration

a = [20 - 40 ]= / 4

a = [-20] / 4

a = -5 m/s^(2)

This is negative which matches the question of slowing down/deceleration.

• The Reactor , which generates heat
• Thew boiler uses that heat to boil water to form steam
• The steam drives a turbine connected to a generator.

LIKE charges REPEL

UNLIKE charges ATTRACT.

NB Think of a pair of magnets. . If the two north or south poles are placed together , they repel .

However, if a north pole and a south pole are placed together , they attract.

In Chemistry ions of opposite charge attract . e.g. Na^(+) + Cl^(-) = NaCl(s)

By combustion /burning.

Refraction is the bending of waves as they enter a different medium.

In what type of orbits do planets move around the sun

what is the effect of placing an object with a greater density than water in a bucket of water

address in red light areas in egmor chennai

why vehicle tyres are black in color

Television

A modeling portfolio

A flatbed machine refers to a type of equipment or device that has a flat, level surface on which materials or objects can be placed for processing, scanning, printing, or other operations. The term "flatbed" typically indicates that the surface of the machine is horizontal and flat, allowing items to be easily placed and manipulated.

One common example of a flatbed machine is a flatbed scanner. In a flatbed scanner, documents, photographs, or other items are laid flat on a glass surface, and a scanning mechanism moves beneath the glass to capture an image of the item. Flatbed scanners are commonly used for digitizing documents, photos, artwork, and other materials.

Another example of a flatbed machine is a flatbed printer. In a flatbed printer, a flat surface serves as the printing bed, and the printing mechanism moves horizontally or vertically across the surface to apply ink or other printing materials onto the items placed on the bed. Flatbed printers are used for printing on various materials, including paper, cardboard, plastics, textiles, and more.

Flatbed machines are versatile and widely used in various industries, including printing, publishing, graphic design, engineering, manufacturing, and document management. They offer convenience, flexibility, and the ability to process a wide range of materials and objects with ease.

There are three main factors that affect the resistance of a copper wire:

1. Length of the wire:

   • The resistance of a wire is directly proportional to its length. As the length of the wire increases, the resistance also increases.

   • This is because the longer the wire, the more obstacles (collisions with electrons) the current has to overcome, resulting in higher resistance.

2. Cross-sectional area of the wire:

   • The resistance of a wire is inversely proportional to its cross-sectional area.

   • As the cross-sectional area of the wire increases, the resistance decreases.

   • This is because a larger cross-sectional area provides more space for the flow of electrons, reducing the resistance.

3. Resistivity of the material:

   • The resistance of a wire is also dependent on the resistivity of the material it is made of.

   • Resistivity is an inherent property of the material and is a measure of how much the material opposes the flow of electric current.

   • Copper has a relatively low resistivity compared to other metals, making it a good conductor and suitable for wiring applications.

The relationship between these factors and the resistance of a copper wire can be expressed by the formula:

R = ρ × (L / A)

Where:

• R is the resistance of the wire

• ρ (rho) is the resistivity of the material (in this case, copper)

• L is the length of the wire

• A is the cross-sectional area of the wire

By adjusting these three factors, you can control and manipulate the resistance of a copper wire to suit your specific needs in electrical and electronic applications.