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3 years ago

An ellipse has two focal points. One of the focal points is the _____. earth, moon, or Sun

Physics

2 answers:

Rasek [7]3 years ago

6 0

An ellipse has two focal points. One of the focal points is the Sun.

Because they planets move faster when they are around the sun.

pogonyaev3 years ago

3 0

An ellipse has two focal points. One of the focal points is the sun. The sun is considered as one of the focal points because the planets orbit around the sun in an elliptical path.

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What does each letter stand for in the formula p=v x i?

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I only know P and V and P is pressure and V is volume

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3 years ago

As a wave travels through a medium, it displaces particles in a direction parallel to the motion of the wave. We can conclude th

postnew [5]

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3 years ago

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30 points - how do I do 2 b and c?

Delvig [45]

1. its must be B and 2. must be C

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3 years ago

A high jumper jumps over a bar that is 2 m above the mat. With what velocity does the jumper strike the mat in the landing area?

docker41 [41]

Answer:

The velocity with which the jumper strike the mat in the landing area is 6.26 m/s.

Explanation:

It is given that,

A high jumper jumps over a bar that is 2 m above the mat, h = 2 m

We need to find the velocity with which the jumper strike the mat in the landing area. It is a case of conservation of energy. let v is the velocity. it is given by :

$v=\sqrt{2gh}$

g is acceleration due to gravity

$v=\sqrt{2\times 9.81\ m/s^2\times 2\ m}$

v = 6.26 m/s

So, the velocity with which the jumper strike the mat in the landing area is 6.26 m/s. Hence, this is the required solution.

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3 years ago

What are some different kinds of bias and how can they ruin a research project

m_a_m_a [10]

Three types of bias can be distinguished: information bias, selection bias, and confounding. These three types of bias and their potential solutions are discussed using various examples.

Bias can damage research, if the researcher chooses to allow his bias to distort the measurements and observations or their interpretation. When faculty are biased about individual students in their courses, they may grade some students more or less favorably than others, which is not fair to any of the students.

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2 years ago

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