After the foot leaves the ball, the acceleration is always downward and is equal to g at all points
This would be called a Joule. The formula for energy is <span>P.E. = mgh (otherwise known as the gravitational force formula, which is energy.) M is the mass in kilograms, and G is the acceleration due to gravity, which is actually (9.</span>8 m / s2<span> at the surface of the earth.) I hope this helps! ~Mia</span>
Answer:
2.23 × 10^6 g of F- must be added to the cylindrical reservoir in order to obtain a drinking water with a concentration of 0.8ppm of F-
Explanation:
Here are the steps of how to arrive at the answer:
The volume of a cylinder = ((pi)D²/4) × H
Where D = diameter of the cylindrical reservoir = 2.02 × 10^2m
H = Height of the reservoir = 87.32m
Therefore volume of cylindrical reservoir = (3.142×202²/4)m² × 87.32m = 2798740.647m³
1ppm = 1g/m³
0.8ppm = 0.8 × 1g/m³
= 0.8g/m³
Therefore to obtain drinking water of concentration 0.8g/m³ in a reservoir of volume 2798740.647m³, F- of mass = 0.8g/m³ × 2798740.647m³ = 2.23 × 10^6 g must be added to the tank.
Thank you for reading.
Answer:
The correct answer to the question is objects have zero acceleration.
Explanation:
Before answering the question, first we have to understand dynamic equilibrium .
A body moving with uniform velocity is said to be in dynamic equilibrium if the net external forces acting on the body is zero. Hence, the body is under balanced forces.
If the external forces acting on a body is not balanced, then the body will accelerate which will destroy its equilibrium condition. Hence, the necessary and sufficient condition for a body to be in dynamic equilibrium is that the forces are balanced.
When a body is in dynamic equilibrium, the body moves with uniform velocity along a straight line unless and until it is compelled by some external unbalanced forces.
Hence, the rate of change of velocity or acceleration of the body will be zero.
Answer:
The acceleration is 
Explanation:
From the question we are told that
The radius is 
The magnitude of the magnetic field is 
The rate at which it decreases is 
The distance from the center of field is 
According to Faraday's law
and 
Where the magnetic flux 
E is the electric field
dl is a unit length
So
Now 
is the circumference of the circular loop formed by the magnetic field and it mathematically represented as 
A is the area of the circular loop formed by the magnetic field and it mathematically represented as 
So
![E = \frac{r}{2} [ - \frac{db}{dt} ]](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7Br%7D%7B2%7D%20%5B%20-%20%5Cfrac%7Bdb%7D%7Bdt%7D%20%5D)
Substituting values
The negative signify the negative which is counterclockwise
The force acting on the proton is mathematically represented as
Also 
So
Where m is the mass of the the proton which has a value of 
So
