The wave takes 11.3 s to cover a distance of 26.5 m, so its speed is:

The distance between two consecutive crests is 3 m, and this corresponds to the wavelength of the wave. To find its frequency, we can use the relationship between the speed v, the wavelength

and the frequency f:
Because a galaxy is a large collection of many stars, and almost every star radiates some visible light.
Answer:
1/2mv^2 a(7.5 b(15 kg c(60 kg d(120 kg. nevermind i found the answer its (15 kg) because to solve for m its m= K2/v squared.
Explanation:
Explanation:
it can improve muscle strength and boost your endurance.
it also delivers oxygen and nutrients to your tissues