Let the sphere is having charge Q and radius R
Now if the proton is released from rest
By energy conservation we can say
now take square root of both sides
so the proton will move by above speed and
here Q = charge on the sphere
R = radius of sphere
What is the approximate weight of a 20-kg cannonball on earth
2 answers:
Answer:
196 N
Explanation:
The weight of an object is given by
where m is the mass of the object, and g is the gravitational acceleration on the planet.
In this example, we have an object with mass m=20 kg, and the value of the acceleration due to gravity on Earth is g=9.81 m/s^2, therefore if we use the above equation we find the weight of the cannonball:
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