an ocean wave has a length of 10 meters. a wave passes a fixed location every 2 seconds. what is the speed of the wave

v = 5m/s

Explanation:

Explanation:

The speed of a wave can be found by using the equation

v=λν where λ  is the wavelength of the wave and ν its frequency.

The question already has given us the wavelength of these waves to be

10m meaning λ=10m

The task at hand is now to find the frequency of these waves.

Consider the information given with regard to frequency. We know that the frequency of a given wave is the number of cycles it takes in a set number of seconds. A wave passes through a stationary boat every 2 seconds. A wave passing through a boat implies that a crest or trough has passes through a boat, here it does so every 2 seconds. This implies that for every one cycle, 2 seconds pass.

We now know for each cycle 2 seconds pass, hence

ν=1cycle/2seconds ⇒ν=12/s

Substituting for

λ and ν,v=102m/s

I'm sure the rest will be done smoothly.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be