Answer:
B. Wave B has greater intensity and transfer more energy.
Explanation:
Amplitude of wave B is more and it seems to be compact in less period of time as compared to Wave A.
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<span>C) 4.5 billion years old</span>
Answer:
B. 14.4 N
Rotational speed (Angular Velocity) = 2
The Radius of the circle = 1.2 m
Velocity = Angular velocity × radius = 2×1.2 = 2.4 m/s
Centripetal force= mv²/r = 3 × 2.4×2.4/1.2 = 3 × 2.4 × 2
= 14.4 N
Answer:
Group 1 - the alkali metals. The Group 1 elements in the periodic table are known as the alkali metals.
Explanation: