Answer:
0.2 A
Explanation:
Current: This is the rate of flow of charge in a circuit. The S.I unit of charge is Ampere (A).
Note: When resistors are connected in parallel, the total current is equal to the sum of the individual current in each resistor.
It = I1 + I2 + I3......................... Equation 1
Where,
It = Total current, I1 = current in the first resistor, I2 = current in the second resistor, I3 = current in the third resistor.
Given: It = 0.71 A, I1 = 0.27 A, I2 = 0.24 A.
Substitute into equation 1
0.71 = 0.27+0.24+I3
0.71 = 0.51+I3
I3 = 0.2 A.
Hence the current through the third resistor = 0.2 A
3,89,988 cm/min is the linear velocity
Given,
Diameter of CD = 12 cm
So, Radius of CD = 6 cm
CD is spinning at 10350 rev/min
Firstly , convert rev/min into rad/min
1 rev = 2π radians
10350 rev/min = 10350 × 2π
= 64998 rad/min
Formula used,
where,
is the Linear velocity
is the radius
is the angular velocity
= 6 cm × 64998rad/min
= 3,89,988 cm/min
Thus, linear velocity for any edge point of a 12-cm-diameter CD (compact disc) spinning at 10,350 rev/min is 389988 cm/min.
Learn more about Angular speed here brainly.com/question/540174
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Answer:
2.26 s
Explanation:
The following data were obtained from the question:
Height (h) = 25 m
Acceleration due to gravity (g) = 9.8 m/s²
Time (t) =..?
The time taken for the egg to hit the floor can be obtained as illustrated below:
h = ½gt²
25 = ½ × 9.8 × t²
25 = 4.9 × t²
Divide both side by 4.9
t² = 25 / 4.9
Take the square root of both side
t = √(25 / 4.9)
t = 2.26 s
Thus, it will take 2.26 s for the egg to hit the floor.