The diameter of the sphere is 2cm.
<h3>How to calculate the diameter?</h3>
From the diagram, the first sphere on the ruler is at 4cn and the last sphere is at 12cm.
Therefore, the length will be:
= 12 - 4.
= 8cm
The diameter of one sphere will be:
= Length / 4
= 8/4
= 2
Therefore, the diameter of the sphere is 2cm.
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Answer:
A. Mass cannot be created or destroyed:)
Explanation:
uhhhhh idk what to write here. Hope this helped;))
I believe the answer is chemical reactivity because: Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties.
Answer:
Distance is the whole travel from A to B and B to C.
While, displacement is the shortcut directly from A to C.
Answer:
39267.96 Hz
Explanation:
Given:
Frequency emitted = 16246 Hz
Speed of source = 141 m/s
Speed of observer = 141 m/s
Let the velocity of sound is v = 340 m/s
Doppler effect is nothing but the change in the wavelength or frequency of a wave relative to the observer, who is also moving relative to the origin of the wave source.
Therefore, Doppler effect when the source and the observer moves towards each other,
Frequency heard = ( frequency emitted ) ( Velocity of sound + Speed of the observer ) / ( velocity of sound - speed of source )
16246 x ( 340 + 141 ) / ( 340 - 141 )
= 39267.96 Hz
