Aradar tower sends out a signal of wavelength image for a radar tower sends out a signal of wavelength lambda. it is x meters tall, and it stands on the edge of the o. it is xmeters tall, and it stands on the edge of the ocean. a weatherballoon is released from a boat that is a distance d out to sea. the balloon floats up to an altitudeh. in this problem, assume that the boat and balloon are so far awayfrom the radar tower that the small angle approximationholds. a) due to interference with reflections off the water, certainwavelengths will be weak when they reach the balloon. what is themaximum wavelength image for a radar tower sends out a signal of wavelength lambda. it is x meters tall, and it stands on the edge of the o that will interfere destructively? b) what is the maximum wavelength image for a radar tower sends out a signal of wavelength lambda. it is x meters tall, and it stands on the edge of the o that will interfere constructively?

a)

b)

Explanation:

a)Regular destructive two-slit interference equations apply

therefore, we can write

b) Regular constructive two-slit interference equations apply

therefore, we can write

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.