Answer:
Explanation:
Given parameters:
Electrical energy = 18J
Quantity of charge Q = 12C
Unknown:
Voltage = ?
Solution:
The expression of electrical potential energy is given as:
Electrical potential energy =
c v²
c is the quantity of charge
v is the voltage
18 =
x 12 x v²
18 = 6v²
v² = 3
v = 1.7v
Answer:
1. 125N
2. 200N
3. 280N
Explanation:
Force= mass × acceleration
1. force= 25×5
= 125N
2. Force= 50×4
=200N
3. Force=70×4
=280N
There are two interchangeable concepts that can be applied to this theory. The first one is the moment of Inertia and the second the perioricity. When the runners put their leg forward they reduce their moment of inertia allowing their center of mass to maintain the speed they carry and not waste energy. In this way when they swing, the leg begins to act as a kind of pendulum, and remember that the pendulum is directly proportional to the length, that is,

In this way, by bringing their legs closer they reduce the distance and make the period shorter.
Answer:

Explanation:
In this reaction, Sum of Atomic Masses of Left side = Sum of Atomic Masses of right side
Let the atomic mass of Thorium be x
So,
233 = 4 + x
Subtracting 4 to both sides
x = 233-4
x = 229
Answer:
A) Apparent Weight = 590 N
Explanation:
As we know that frequency is given as


now the angular speed is given as


now at the top position we will have



