Tea elastic, i think that is right? if not please tell me??!!!!
Answer:
x -component of dog's velocity = 8.265m/s
y- component of dog's velocity = 1.389m/s
Explanation:
The detailed and step by step calculation is as shown in the attached file.
Answer:
It would not be safe to walk out to where waves are breaking due to the effect of rip currents
Explanation:
The water depth in the surf zone is between 5 to 10 meters deep and with a wavelength of 30 meters, the speed of the wave is considerably fast such that control for safety may be difficult
Also the speed of the wave is directly related to the depth of the water which means that where the wave described above is fast as well as the rip current, also the water depth is expected to be considerable for a non swimmer
It is best to seek for sign post regarding safe areas and do not go into the water where there are no lifeguards or marked safe zones.
The correct option from given choices is 2, that is 0.24 m
We can find this by using the following formula;
ln A = ln Ao - kt
Ao = 0.30
k = 0.080 min⁻¹
t = 2..6 min
<span>ln A = ln 0.30 - (0.080 min</span>⁻¹<span>) (2.6 min) </span>
<span>ln A = -1.412 </span>
<span>A = 0.24 m</span>