To see how two traveling waves of the same frequency create a standing wave. consider a traveling wave described by the formula:

y1(x, t)=asin(kx−ωt).

this function might represent the lateral displacement of a string, a local electric field, the position of the surface of a body of water, or any of a number of other physical manifestations of waves.
find ye(x) and yt(t). keep in mind that yt(t) should be a trigonometric function of unit amplitude.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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cant without the picture! ?

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft

explanation:

wheres the pic