EXERCISE
A solid sphere of radius 0.3 m executes torsion oscilla
time period 27/12 s. If the torque constant of the w
6x10-'N-m/rad. Calculate the mass of the sphere.
n oscillation of
f the wire be
Ans: 2 kg
A particle is moving with simple harmonic motion in
straight line. If it has a speed V, when the displacement
and speed v2 when the displacement is X, then, show that
X
time period of motion is 2014
-X
2
Ivi-V2.
meter cool

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58