Which statement describes an example of constructive interference? O A. Oil spilled in a water puddle shows different colors of light.
O B. A cell-phone signal is lost when you pass through a certain area.
O C. Two TV signals reach an antenna and cancel each other out.
D. Light forms bars on a surface after passing through two slits.

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

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

friction

explanation:

they us to move forward and backwards