Rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
Given
x = 0.3t² + 7.2t + 28
y = 0.22t² - 9.1t +30
At t = 15s
x = 0.3(15)² + 7.2(15) +28 = 203.5
y = 0.22(15)² - 9.1(15) + 30 = -57
The rabbit's position vector (r) in unit vector notation is:
r = 203.5î - 57j
The magnitude of position vector (r)
r = √x² + y²
r = √(203.5)² - (57)² =√38163.25
= 195.35m
The directional angle of position vector (r)
tanθ = y/x = -57/203.5
θ = 
(-57/203.5)
θ = 0.004°
Hence, rabbit's position vector (r) in the unit vector is 203.5î - 57j and the magnitude and directional angle of vector (r) are 195.35m and 0.004° respectively.
Learn more about Position vector here brainly.com/question/23922381
#SPJ1
A person who is very stressed or anxious may lose their appetite. Nausea is a recognized symptom of anxiety disorders. Other physical symptoms can include shaking, sweating, rapid heartbeat, and difficulty breathing. Treatment options for anxiety include therapy and medication.
Hope this helps have a nice day :)
<span>The main characteristic of certificates of deposit (CDs) is that they are an investment with a specified investment period, as determined by the financial institution at the time of purchase of the CD. This allows the financial institution a specific period of time to use the money for investment. Consequently, early withdrawal of a CD will cause a penalty. Financial institutions will usually set a pre-determined interest rate for the period of time in which the CD is active.</span>
1 - inhale for 3 seconds, hold breath for 4 seconds, and breath out for 7 seconds.
2 - find a stable aspect of your life and focus on it in moments you think a panic attack is going to happen or is happening
3 - step out of the situation on hand
