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Gnesinka [82]
2 years ago
10

Physics Practice Help just need an explanation really not looking for an answer

Physics
2 answers:
agasfer [191]2 years ago
8 0

This question involves the concepts of the law of conservation of energy and kinetic energy.

The variables required for a computational model that predicts change in the energy of a falling object are "B.)Height, speed, mass".

According to the law of conservation of energy the change in energy can be given in the following form for a falling object:

Loss in Potential Energy = Gain in Kinetic Energy

mgh = \frac{1}{2}mv^2

It is clear from the formula that the variables involved in the computational model are <u>mass, height, and velocity</u>.

Learn more about the law of conservation of energy hee:

brainly.com/question/381281?referrer=searchResults

melamori03 [73]2 years ago
8 0

Answer:

b) height, speed, mass

Explanation:

just took the test

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You are 2.4 from a plane mirror, and you would like to take a picture of yourself in the mirror. You need to manually adjust the
Wittaler [7]

Answer:

option (D)

Explanation:

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So, the distance  between you and your image is two times the distance between you and mirror.

the distance between you and your image = 2 x 2.4 = 4.8 m

5 0
3 years ago
Light travels at 300,000 km per second. Mars is 56 million km away from Earth. How many seconds does it take light to travel fro
alina1380 [7]

Answer:

<em> It takes 186.67 second for the light to travel from Mars to earth.</em>

Explanation:

Light: Light is a visible form of energy which is radiated outward from a source. Light travels in a straight line, and this phenomenon is called rectilinear propagation of light.

S = d/t .......................... Equation 1

making t the subject of the equation

t = d/S ......................... Equation 2

Where S = speed of light, d = distance between the earth and Mars, t = time

<em>Given: d = 56000000 km, S = 300000 km per seconds.</em>

<em>Substituting these values into equation 2</em>

<em>t = 56000000/300000</em>

<em>t = 186.67 seconds.</em>

<em>Thus it takes 186.67 second for the light to travel from Mars to earth.</em>

4 0
3 years ago
Which statement best compares potential and kinetic energy?
xenn [34]

Answer:

D

Explanation:

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8 0
3 years ago
La aceleración de un proyectil que describe una trayectoria parabólica cerca de la superficie terrestre es constante o variable
Ann [662]

Answer:

Es una constante porque sigue funcionando y debido a la gravedad, tú tendrías que ser tú quien la detenga si está bajando en lugar de hacia arriba.

Explanation:

5 0
3 years ago
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Semenov [28]

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7 0
2 years ago
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