Answer: 1,500m/s
Explanation:
Relationship existing between velocity of a wave (v), wavelength(¶) and frequency(f) is
v = f¶... (1)
Since Frequency (f) is the reciprocal of the period (T);
Frequency = 1/Period i.e F = 1/T... (2)
Substituting equation 2 into 1 we have;
v = 1/T × ¶
v = ¶/T
Given wavelength ¶ = 9m
Period T = 0.006s
v = 9/0.006
v = 1,500m/s
The velocity of the wave will be 1,500m/s
Bigger is the correct answer. the faster an igneous rock cools the bigger the bigger the crystal size will be
When an astronaut travels from the earth to the moon, her weight changes, but her mass remains constant. <em>(C ).</em>
Answer:
Explanation:
From the given information:
Distance
Speed of the comet
At distance
where;
mass of the sun =
To find the speed :
Using the formula: