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3 years ago

Define reference point plz help me

Physics

2 answers:

xeze [42]3 years ago

8 0

Answer:

a basis or standard for evaluation, assessment, or comparison; a criterion.

Explanation:

Definition of reference point. : something that is used to judge or understand something else The professor used the study as a reference point for evaluating and discussing other theories.

FinnZ [79.3K]3 years ago

3 0

Answer:

something that is used to judge or understand something else

Explanation:

The professor used the study as a reference point for evaluating and discussing other theories.

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A student wishes to record a 7.5-kilogram watermelon colliding with the ground. Calculate how far the watermelon must fall freel

algol [13]

Answer:

42.86m

Explanation:

The first thing we should keep in mind is that the watermelon moves with uniform acceleracion equal to gravity (9.81m / s ^ 2)

A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

When performing a mathematical demonstration, it is found that the equations that define this movement are as follows.

$\frac {Vf^{2}-Vo^2}{2.g} =Y$

where

Vf=29m/s= final speed

Vo= initial speed=0m/S

g=gravity=9.81m/s^2

Y= distance traveled(m)

solving

$\frac {Vf^{2}-Vo^2}{2.g} =Y\\\frac {(29m/s)^{2}-(0m/s)^2}{2(9.8m/s^2)} =Y\\Y=42.86m\\$

the distance traveled by watermelon is 42.86m

5 0

4 years ago

How does the modern periodic table arrange elements?

Rus_ich [418]

Answer:

In the modern periodic table, the elements are arranged according to their atomic number - not their relative atomic mass . In the periodic table the elements are arranged into: rows, called periods , in order of increasing atomic number. vertical columns, called groups , where the elements have similar properties.

Explanation:

5 0

3 years ago

Read 2 more answers

When you are sitting in a car that is turning around a circle, you feel your body is being thrown outward. However, your physics

Degger [83]

Answer:

Explanation:

Centripetal force acts towards the center of the circle. However, our body is not attached to the car, it is only kept in the car. Therefore, when an external force acts on the car, inertia acts on the body due to the sense that it will try to remain in the same state.

Although the car takes the turn, but due to the inertia, the body will try to move forward; but since the seat belts are on, it is enforced to move with the car in a circular motion

7 0

3 years ago

What causes competition among organisms?

irga5000 [103]

Answer:

Whats up Bmw,

The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.

Explanation:

Hope I helped you, and let me know if you need help on anything else :p

8 0

4 years ago

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An aerobatic airplane pilot experiences weightlessness as she passes over the top of a loop the loop maneuver. The acceleration

Natali5045456 [20]

The radius of the loop is 18.9 km

Explanation:

When the airplane is at the top of the loop, the pilot experiences two forces: