Answer:
The tension in the rod as the ball moves through the bottom circle is 9.8 N
Explanation:
When the ball is released from rest, the centripetal force equals the weight of the ball. So mv²/r = mg where m = mass of ball = 0.5 kg, v = speed of ball, r = radius of vertical circle = length of rod = 0.5 m and g = acceleration due to gravity = 9.8 m/s²
v = √gr = √9.8 m/s² × 0.5 m = √4.9 = 2.21 m/s
Now at the bottom of the circle T - mg = mv²/r where T = tension in the rod
T = m(g + v²/r)
= m(g + (√gr)²/r)
= m(g+ gr/r)
= m(g + g)
= 2mg
= 2 × 0.5 kg × 9.8 m/s²
= 9.8 N
So, the tension in the rod as the ball moves through the bottom circle is 9.8 N
Answer:
b. The rate at which charge flows
Explanation:
First we must complete the question:
Which of the following describes the measure of current:
a. The quality of the charge flow
b.The rate at which charge flows
c. The ability for something to have a charge flow
d.The potential for a charge to flow
The answer is b) The rate at which charge flows
The electric current is the electric charge flow that passes through a conductive material for a certain period of time. It is expressed in C / s, culombios per second in the international system of units, and the unit is known as Ampere (a)
The charge can be defined by culombio [C]
distance(d) = speed(s) × time (t)
= 22.3 × 8.5
= 189.55m
Explanation:
Given that,
The vertical motion of mass A is defined by the relation as :
At t = 1 s
x = 115.33 mm
(a) We know that,
Velocity, 
At t = 1 s
v = 18.94 mm/s
We know that,
Acceleration, 
At t = 1 s
(b) For maximum velocity, 
t = 45 seconds
For maximum acceleration, 
t = 61.8 seconds
Hence, this is the required solution.
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(1,152 BTU) x (1,055.06 joule/BTU)=<span>1,215,429.12</span>
I Hope This Helps Dear! :D
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