A. Air, desk, water. sound travels the slowest through air and the fastest through liquids. solids are somewhere in the middle.
Answer:
Explanation:
a )
59° south of west means (180 + 59 )° counterclockwise from the +x-axis.
so angle θ = 239 ° .
r = 3.5 miles .
polar coordinates ( r , θ )
= ( 3.50 , 239° )
As the smallest positive angle in degree is 26 then 26 x 9 = 234
so rounding off 239 to 234 , the angle will be 234
polar coordinates ( 3.50 , 234 )
b )
Cartesian coordinates (in miles) for the same point
x coordinate = r cosθ = 3.5 cos 234 = - 2.06 mi
y coordinate = r sinθ = 3.5 sin 234 = - 2.83 mi
Answer:
Speed will be equal to 1.40 m/sec
Explanation:
Mass of the rubber ball m = 5.24 kg = 0.00524 kg
Spring is compressed by 5.01 cm
So x = 5.01 cm = 0.0501 m
Spring constant k = 8.08 N/m
Frictional force f = 0.031 N
Distance moved by ball d = 15.8 cm = 0.158 m
Energy gained by spring
Energy lost due to friction
So remained energy to move the ball = 0.0101 - 0.0048 = 0.0052 J
This energy will be kinetic energy
v = 1.40 m/sec
If a person returns to the position he started again. like moving in a circle track
Answer:
The kite string is feet long.
Explanation:
Use the Pythagorean Theorem, which is .
Here the question is asking for , which would be the hypotenuse, or the longest side of the triangle.
So the would be , and the would be .
Plug those values into the formula, and that would get .
Now, solve for , which would equal .
That means we would have to solve for .
Square root both sides of the equation, getting .
Solve for , which would get us .
Hence, the answer to this would question would be .
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