Answer:
The tension on an object is equal to the mass of the object x gravitational force plus/minus the mass x acceleration. T = mg + ma.
Explanation:
I think it is A........................................
An object that has kinetic energy must be <em>moving</em>.
The formula for an object's kinetic energy is
KE = (1/2) · (the object's mass) · <u><em>(the object's speed)²</em></u>
As you can see from the formula, if the object has no speed, then its kinetic energy is zero. That's why kinetic energy is usually called the "energy of motion", and if an object HAS kinetic energy, then that tells you right away that it must be moving.
Answer:
weakens by 64 times
Explanation:
According to universal law of gravitation the force between two bodies is inversely proportional to square of their distance between them that F is inversely proportional to 
So if we increase the the distance between two planets by 8 times then the the mutual attraction between will be decrease by 
times
Answer:
The tissue paper will stick to the balloon because it is positively charged.
Explanation:
