Two objects have the same size and shape, but one is much heavier than the other. When they are dropped simultaneously from a to
1 answer:
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Answer:
a) v = 1524.7 m/s
b) T = 8.47*10^-4 s
λ = 1.29 m
Explanation:
a) First, in order to calculate the speed of the sound wave, you take into account that the velocity is constant, then, you use the following formula:
d: distance traveled by the sound wave, which is twice the distance to the ocean bottom = 2*324 m = 648 m
t: time that sound wave takes to return to the sub = 0.425
hence, the speed of the sound wave is 1524.7 m/s
b) Next, with the value of the velocity of the wave you can calculate the wavelength of the wave, by using the following formula:
f: frequency = 1.18*10^3 Hz
And the period is:
hence, the wavelength and period of the sound wave is, respectively, 1.29m and 8.47*10^-4 s
Answer:
68.2 Quadrillion meters
Explanation:
A lightyear is the distance that light travels in one year.
Speed of light is
So light covers 300,000,000 meters in one second.
One year has 31536000 seconds so , light covers
so 7.2 light years is
so 7.2 light years is
6.82 x 10^(16) meters or
68.2 Quadrillion meters