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Yakvenalex [24]
3 years ago
7

Los estudiantes de la clase del Sr. Malio trabajaron en una investigación para medir el tiempo que le tomó al automóvil de energ

ía viajar a diferentes posiciones en una pista recta y nivelada. Usando sus datos, dibujaron el gráfico de posición versus tiempo que se muestra arriba. Utilice este gráfico para responder las siguientes preguntas.
Por favor ayúdenme necesito que me respondan rápido
Physics
1 answer:
Eduardwww [97]3 years ago
8 0

Answer:

5

Explanation:

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In an experiment, an object is released from rest from the top of a building. Its speed is measured as it reaches a point that i
NikAS [45]

Answer:

so the speed will increase by 1.44 times then the initial speed if the distance is increased to double

Explanation:

As we know that the air friction or resistance due to air is neglected then we can use the equation of kinematics here

v_f^2 - v_i^2 = 2 a d

since we released it from rest so we have

v_i = 0

so here we have

v_f = \sqrt{2gd}

now if the distance is double then we have

v_f' = \sqrt{2g(2d)}

now from above two equations we can say that

v_f' = \sqrt2 v_f

so the speed will increase by 1.44 times then the initial speed if the distance is increased to double

4 0
3 years ago
Difference between liquid solid and gas in the arrangement of molecules​
marin [14]

Answer:

Note that:

Particles in a:

gas are well separated with no regular arrangement.

liquid are close together with no regular arrangement.

solid are tightly packed, usually in a regular pattern.

Explanation:

3 0
2 years ago
Read 2 more answers
What device increases voltage?
erma4kov [3.2K]

Your answer would be C.

A step-up transformer is a transformer that raises voltage from main to secondary by having more secondary winding turns than primary winding turns.

Hope this helps; have a great day!

8 0
2 years ago
Which is more useful for storing thermal energy, the block of lead or the water in the calorimeter?
leonid [27]

I believe it is the block of lead

5 0
3 years ago
Consider Newton's Law of Universal Gravitation: FG= G (m1 m2)/d2 .
bixtya [17]

Answer:

C

Mass is directly proportional to the Force of Gravity. If Mass increases, then the Force of Gravity increases; however, Distance is indirectly (or inversely) proportional to the Force of Gravity. If Distance increases, then the Force of Gravity decreases.

Explanation:

The formula for the force of gravity between two objects is

F=G\frac{m_1 m_2}{d^2}

where

G is the gravitational constant

m1, m2 are the masses of the two objects

d is the separation between the two objects

We notice the  following:

- F is directly proportional to the masses, F\propto m_1, m_2. This means that if one of the masses increases, then the force between them, F, increases in a proportional way

- F is inversely proportional to the square of the distance, F\propto \frac{1}{d^2}. This means that if the distance between the two objects is increased, the force between them will decrease, and vice-versa.

So, the correct answer is

C

Mass is directly proportional to the Force of Gravity. If Mass increases, then the Force of Gravity increases; however, Distance is indirectly (or inversely) proportional to the Force of Gravity. If Distance increases, then the Force of Gravity decreases.

7 0
3 years ago
Read 2 more answers
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