What is the main factor that influence how long a star burns
1 answer:
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Answer:
The Required pressure for this situation is P= 735000Pa
Explanation:
In Determining the required pressure in this situation we use two equations
First one is
F = mg = (ρhA)g
And Second one is
P = = (ρhAg)/A Where P is pressure
We get
P = ρhg
since g = 9.8 m/s and h is given that is 75m and ρ =
so
P = (9.8 m/s)()(75) we get
P = 735000 Pa
Answer:
Explanation:
Force is equal to the product of mass and acceleration.
We know the mass, but not the acceleration. Therefore, we must calculate it before we can calculate force.
1. Calculate Acceleration
Acceleration is the change in velocity over the change in time.
The final velocity is 10 meters per second and the initial velocity is 4 meters per second. The time is 1 second.
Substitute the values into the formula.
Solve the numerator.
Divide.
2. Calculate Force
Now we know the acceleration and the mass.
Substitute the values into the fore formula.
Multiply.
- 1 kilogram meter per square second is equal to 1 Newton.
- Our answer of 12 kg*m/s² is equal to 12 Newtons
The force applies to the ball was <u>12 Newtons.</u>