Answer:
The tension in the cord is 24.1 Newton
Explanation:
<u>Step 1:</u> Data given
mass of the ball = 1.13 kg
Cord = 0.50m
velocity = 2.4 m/s
<u>Step 2:</u> Calculate the tension
Fnet = F(c)
T - F(g) = F(c)
⇒ with F(g) = force of gravity = m*g
⇒ with F(C) = centripetal force = (mv²)/r
T = (mv²)/r + mg
⇒ with m = mass = 1.133 kg
⇒ with v = velocity = 2.4 m/s
⇒ with r = radius = 0.50 m
T = (1.13 * 2.4²) / 0.50 + 1.13 * 9.81
T = 24.1 Newton
The tension in the cord is 24.1 Newton
Option (B) is correct.Energy contained in one gram of matter=9 x 10¹³ J
Explanation:
mass= 1 g= 0.001 kg
c= velocity of light= 3 x 10⁸ m/s
The mass energy equivalence equation is given by
E = m C²
E= (0.001)(3 x 10⁸)²
E=9 x 10¹³ J
Thus energy contained in one gram of matter=9 x 10¹³ J
C) is correct
series circuit - in the same path : current flow on one path so they are equal on each component and equal to the source's. voltage on each components may be different.
parallel circuit - between same nodes : voltage of the components are equal and equal to the source's. current on each components may be different.
Explanation:
Below is an attachment containing the solution.
If a person returns to the position he started again. like moving in a circle track