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Art [367]
2 years ago
10

What is the formula for displacement?

Physics
2 answers:
qwelly [4]2 years ago
7 0
Displacement = final - initial
The formula most closely resembling that is delta = xf - xi
Montano1993 [528]2 years ago
3 0
D = xf - xi , so it would be the first choice.
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Set the initial bead height to 3.00 m. Click Play. Notice that the ball makes an entire loop. What is the minimum height require
strojnjashka [21]

Answer:

h> 2R

Explanation:

For this exercise let's use the conservation of energy relations

starting point. Before releasing the ball

       Em₀ = U = m g h

Final point. In the highest part of the loop

       Em_f = K + U = ½ m v² + ½ I w² + m g (2R)

where R is the radius of the curl, we are considering the ball as a point body.

      I = m R²

      v = w R

we substitute

       Em_f = ½ m v² + ½ m R² (v/R) ² + 2 m g R

       em_f = m v² + 2 m g R

Energy is conserved

       Emo = Em_f

       mgh = m v² + 2m g R

       h = v² / g + 2R

 

The lowest velocity that the ball can have at the top of the loop is v> 0

      h> 2R

3 0
2 years ago
Conduction is usually faster/slower in liquids and certain solids than in gases.
KIM [24]
Conduction is slower in liquids and gases.

Liquids it is convection which transmits more heat.. quicker...

Materials which are good conductors of thermal energy are called thermal conductors.

metals are good thermal conductors.


6 0
3 years ago
HELP ASAP PLZ!
Dafna1 [17]
1. is D. Scientific method cannot be replaced. 
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8 0
2 years ago
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What is the difference between scientific law and scientific theory
Vedmedyk [2.9K]

Answer:

In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.

Explanation:

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<u>Answer</u>

5.the stage before a star becomes a main sequence star

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This been the case, from the choices given, the correct statement about a protostar is;

5.the stage before a star becomes a main sequence star

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