By the radius of the earth
We are required in this problem to approximate tan α which <span>α is less than </span><span>20 degrees.
In radians 20degrees is equal to 0.349; find tan 0.349=0.363
percentage error=(0.349-.363)*100/(0.363) =-3 percent error so for largest angle 20 degrees , the error is less than 10 percent</span>
Answer:
Explanation:
Since tarzan moves in a circular trajectory we can sum all forces on the centripetal-axis:
Since the speed is zero:
Having Tarzan's mass we could calculate the module of the tension in the vine.
Answer:
The resultant acceleration of the particle is a= 0.411 m/s²
Explanation:
r= 0.01m
w= 6 rad/s
α= 20 rad/s²
ac= w²*r
ac= 0.36 m/s²
at= α*r
at= 0.2 m/s²
a= √(at² + ac²)
a= 0.411 m/s²
Answer:
The value is
Explanation:
From the question we are told that
The mass of the sphere is m = 18.5 kg
The diameter is
The number of electrons is
The mass of the plastic ball is
The initial acceleration of the ball is
Generally the radius of the sphere is mathematically evaluated as
=>
=>
Generally the force between the ball and the sphere is
Generally this force can also be mathematically represented as
So
Here is the charge removed from the sphere whicn is evaluated as
substituting for e
and is the charge to be removed from the ball
So
Generally the number of electron to be removed from the ball is mathematically represented as
=>
=>