Answer:
The radius of the sphere is 4.05 m
Explanation:
Given;
potential at surface, 
= 450 V
potential at radial distance, 
= 150
radial distance, l = 8.1 m
Apply Coulomb's law of electrostatic force;
Therefore, the radius of the sphere is 4.05 m
Answer:
60 km
Explanation:
For an object (or a person, such as in this case) moving at constant speed, the speed is equal to the ratio between the distance travelled and the time taken:
where
v is the speed
d is the distance
t is the time taken
In this case, we have:
v = 120 km/h is the speed
t = 30 min = 0.5 h is the time taken
Therefore, we can rearrange the equation to find the total distance travelled:
Answer:
You are pulled towards that building. At the same time, that building is pulled towards you. Neither object creates enough gravitational force to really do anything. That is why you never notice any affect by either body, (you and a building).
Explanation:
You will surely get attracted towards the building.But it takes a lot of time depending on their masses.
This happens only when you are away from earth with that building.
Both of you will get attracted to it
if a third party with mass more than you or building is with you.
If it is on the earth.. Then the gravity between you and the building is negligible compared to the earth.Hence you will not get attracted towards the building in this case.
Answer:
william h. seward secured the purchase of alaska from:
Explanation:
It would increase
because the force is directly proportional to the Value of masses given
