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2 years ago

Velocity can best be described by which of the following statements?

Physics

2 answers:

pogonyaev2 years ago

8 0

Answer: Velocity can best be described as, the speed in a given direction.

Explanation: To find the answer, we need to know more about the Velocity of a body.

<h3>What is Velocity of a body?</h3>

Velocity is the rate of change of displacement.
It's a vector quantity and is measured in m/s.
It can be positive, negative or zero.
A body is said to be in uniform motion, then its velocity remains constant.
Change in velocity can be a change in speed.
The magnitude of velocity is less than or equal to speed.

Thus, we can conclude that, the option C is best describing velocity.

Learn more about velocity here:

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zalisa [80]2 years ago

3 0

The speed in a certain direction is the best way to define velocity.

We need to learn more about a body's velocity in order to locate the solution.

<h3>What does a body's velocity mean?</h3>

The rate of change of displacement is known as velocity.

It has a vector value and is expressed in m/s.

It may be zero, negative, or positive.

When a body is moving uniformly, its velocity is said to be constant.

Speed might alter depending on the change in velocity.

Speed and the magnitude of velocity are not comparable.

As a result, we can say that choice C best captures velocity.

Learn more about the velocity here:

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_____________ circular motion occurs when an object is traveling with constant speed in a circle.

emmasim [6.3K]

Your answer is ''Uniform''.

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3 years ago

What do a control group and an experiment group have in common ?

Vlad [161]

<span>Whatever the focus of the experiment is, plus any others factors that might influence the outcome of the experiment. If you are testing a new cancer drug, the experimental group and the control group must both be people with the same type of cancer, and both be a representative distribution of the population, all races, genders, ages, etc. You want the only difference in the two groups to be what you are studying, i.e. the effects of the drug.</span>

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3 years ago

Read 2 more answers

What is the change in length of a 1400. m steel, (12x10^-6)/(C0) , pipe for a temperature change of 250.0 degrees Celsius? Remem

8090 [49]

Answer:

$\Delta L = 4.2 m$

Explanation:

As per the formula of thermal expansion we know that

$L = L_o(1 + \alpha\Delta T)$

so here we will have

$L_o = 1400 m$

$\alpha = 12 \times 10^{-6} per ^oC$

$\Delta T = 250 degree C$

so here change in the length of the rod is given as

$\Delta L = L - L_o$

$\Delta L = L_o \alpha \Delta T$

$\Delta L = 1400 (12 \times 10^{-6})(250)$

$\Delta L = 4.2 m$

8 0

3 years ago

ANSWER FAST PLEASE HELP

KengaRu [80]

Answer:

B. 175 N

Explanation:

Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.

Mathematically, net force is given by the formula;

$Fnet = Fapp + Fg$

Where;

Fnet is the net force

Fapp is the applied force

Fg is the force due to gravitation

In this scenario, we observed that both forces are acting in the same direction.

Therefore:

Net force = 100 N + 75 N

Net force = 175 Newton

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3 years ago

Does the tension of a string affect the speed of a wave

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Yes , increased tension suggests increased molecular attraction between the molecules of the ropes which affect the increase in the speed of wave.

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3 years ago