PHYSICS HIGH SCHOOL

A quantity that has magnitude only is a _____.
scalar
diagonal
vector

Answers

Answer 1
Answer:

A quantity that has magnitude only is a scalar. In Physics, a quantity with only magnitude is called a scalar. Scalar quantities include distance, speed, mass, temperature, and energy. They are distinguished from vectors which have both magnitude and direction.

A scalar is a fundamental concept in mathematics and physics, representing a single quantity with magnitude but no direction. Scalars are characterized solely by their numerical value, such as speed or temperature. Unlike vectors, which have both magnitude and direction, scalars are concerned with the "how much" rather than the "where" or "in which direction." Scalars are used in various fields, from physics to mathematics and engineering, simplifying the description of quantities that don't involve direction, making calculations and analysis more straightforward.

A quantity that has magnitude only is referred to as a scalar. In Physics, quantities are typically classified into two types: scalars and vectors. A scalar quantity is defined by its magnitude alone, with no direction associated with it. Examples of scalar quantities include distance, speed, mass, temperature, and energy. On the contrary, a vector has both magnitude and direction. Hence, the correct answer to your question is scalar.

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Answer 2
Answer:

Answer:

scalar

Explanation:

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Tarzan swings on a 31.0 m long vine initially inclined at an angle of 36.0◦ with the vertical. The acceleration of gravity if 9.81 m/s 2 . What is his speed at the bottom of the swing if he a) starts from rest? Answer in units of m/s

Answers

Answer:

v=10.777m/s

Explanation:

Tarzan swing can be thought of as change in potential energy by going from higher location We solve for height of beginning of the swing by using simple cosine equation:

So

31Cos36=25.08\nE_(potential)=mgh\n

ΔE=mg(h₂-h₁)

=m*9.81(31-25.08)\n

The potential energy of Tarzan initial position is converted into kinetic energy of his swing.By using kinetic equation

E_(kinectic)=P_(potential)\n1/2mv^(2)=m*9.81(31.0-25.08)\n(1/2)v^(2)=9.81(31.0-25.08)\n0.5v^(2)=58.07\nv^(2)=58.07/0.5\nv=√(58.07/0.5)\n v=10.777m/s    

Which of the following describes volumeA.the number of particles or amount of matter
B.the amount of space that matter ocupies
C.how fast the particles are moving
D.amount of massin a certain place

Answers

B.the amount of space that matter ocupies
B.the amount of space that matter ocupies

Why can velocity and speed be interchanged in the formulas

Answers

Because in high school physics, all the problems you're given to deal with
involve motion in a straight line, so you never have to deal with changes in
the direction of motion.  If it's OK to ignore direction, then speed and velocity
appear to be the same thing.

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Answers

Answer:

yes i understand jxwkxbkwksk j

Explanation:

Answer:

Yes

Explanation:

Green light has a lower frequency than blue light. Which color of light has a longer wavelength?

Answers

Although green light has a lower frequency than the blue light, but green light has the longer wavelength than the wavelength of blue light. The wavelength of green light is longer by a small margin than the wavelength of the blue light. Red light has the highest wavelength among all the available colors of light. Any color of light is nothing but an electromagnetic wave that enables us to see things around us. Humans mostly can see wavelengths between the Electromagnetic spectrum and the Ultra violet region.


Answer:

purple

Explanation:

Explain what would happen to the tyre pressure if more air is pumped into the tyre, but the volume ofnthe ture remains the same.​

Answers

it would increase

considering the volume to remain constant, adding more air into it would result in more collisions between the particles and the tyre walls, since it's an enclosed surface.

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