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Rina8888 [55]
3 years ago
7

38 points!! >:D

Chemistry
2 answers:
Sav [38]3 years ago
8 0

Answer: which*

Explanation:

VashaNatasha [74]3 years ago
3 0
Sound can travel through any medium
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When a plant responds to changes in the length of day by flowering during certain seasons, it is called
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Answer: photoperiodism

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scientific description about the pizza dough doubles its size when it is placed in a warm place . how does this happen
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In an ionic bond:
Fynjy0 [20]

In an ionic bond :

=》B. one atom accepts electrons from another.

in this bond an atom ( <em><u>metallic</u></em> ) loses its electrons and another atom ( <em><u>non- metallic</u></em> ) accepts the electrons, and since there isn't the equal positive and negative charges in the atoms, they forms <em><u>cations</u></em> ( +ve charge ) and <em><u>anions </u></em>( -ve charge )

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4 0
3 years ago
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A 13-gram rubber stopper is attached to a 0.93-meter
makkiz [27]
<h3>Answer:</h3>

The centripetal acceleration is 26.38 m/s²

<h3>Explanation:</h3>

We are given;

  • Mass of rubber stopper = 13 g
  • Length of the string(radius) = 0.93 m
  • Time for one revolution = 1.18 seconds

We are required to calculate the centripetal acceleration.

To get the centripetal acceleration is given by the formula;

Centripetal acc = V²/r

Where, V is the velocity and r is the radius.

Since time for 1 revolution is 1.18 seconds,

Then, V = 2πr/t, taking π to be 3.142 ( 1 revolution = 2πr)

Therefore;

Velocity = (2 × 3.142 × 0.93 m) ÷ 1.18 sec

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Thus;

Centripetal acceleration = (4.953 m/s)² ÷ 0.93 m

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Hence, the centripetal acceleration is 26.38 m/s²

6 0
3 years ago
Which type of radiation particle, emitted from a nuclear reaction, is most similar to a helium nucleus?
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Alpha particles because two protons and two neutrons 
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