Waves are unique because of their ability to travel through a vacuum, a space that contains no particles of matter.

Electromagnetic Waves or EM waves

Explanation:

Electromagnetic waves are very unique in a manner that the do not require an medium to travel and thus they can travel through vacuum as well. The EM wave spectrum consists of various waves which are categorized as per their frequency. EM waves include Gamma rays, x-rays, Ultraviolet rays, Visible, Infrared rays, and radio waves. They travel at a speed of 300000 km/sec.

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