Cell phone conversations are transmitted by high-frequency radio waves. Suppose the signal has wavelength 36.5 cm while travelin
1 answer:
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Answer:
a. Springs oscillate with the same frequency
Explanation:
As they both are in the same height at equilibrium, so
weight of ball must be balanced with spring force, that is
k×x=mg
k= stiffness constant of spring
x=distance stretched
g= acceleration due to gravity
so, we can write
k/m=g/x
as the g is a constant and they stretched to same distance x so the g/x term becomes constant and
and k/m is same for both the springs so they will oscillate at the same frequency.
hence option a is correct.
6m at 0.9 radian means 6m at
Since positive angles are counter clockwise
6m at can be written as 6*cos
i+6*sin
j = 3.73i+4.70j
5m at can be written as 5*cos
i+5*sin
j = 1.294i-4.83j
4m at 1.2 radian means 4m at
4m at can be written as 4*cos
i+4*sin
j = 1.45i+3.73j
6m at can be written as 6*cos
i+6*sin
j = -5.20i-3j
a) So sum of the vector = 1.274i+0.6j
b) Magnitude =
c) Angle,