frequency=4Hz
wavelength=5m
amplitude=1/2×2=1m
period=1/frequency
1/4=0.25seconds.
velocity=wavelength×frequency
=5×4
=20m/s
Explanation:
a. The velocity of the wind as a vector in component form will be represented as v vector:

b.The velocity of the jet relative to the air as a vector in component form will be represented as u vector

c. The true velocity of the jet as a vector will be represented as w:


d. The true speed of the jet will be calculated as:




e. The direction of the jet will be:



Answer:
the answers are 1 2 and 5!
The density of the object is 0.032 g/cm^3.
<h3>What is density?</h3>
The term density means the ratio of the mass to the volume of an object. Now we know that when an object is dense that it would sink to the bottom of a fluid.
Now given that;
Mass = 0.8 g
volume= 25 cm^3
Density = mass/volume
Density = 0.8 g / 25 cm^3
= 0.032 g/cm^3
Learn more about density:brainly.com/question/15164682
#SPJ1
MISSING PARTS
What is the density of an object having a mass of
0.8g and a volume of 25cm^3