It doubles
Momentum= mass * velocity
when velocity doubles
momentum= 2*(velocity* mass)
Good morning.
Yes, it is possible.Energy is a scalar quantity. The value of the potential energy is calculated the following way:
Where
m is mass,
g is the acceleration of gravity and
h is the height.
Note that the height depends on the adopted referential, therefore, if we adopt, for example, a referential on the floor, if we dig a hole that has a depth of 1 meter, a ball that is put inside the hole will have negative potential energy due to the adopted referential, since
h is negativa in this case.
"The <span>ground is positively charged and the clouds are negatively charged " is the statement among the statements given in the question that </span><span>best explains the movement of electric current from the clouds to the ground during a lightning storm. The correct option among all the options that are given in the question is the third option or option "C". </span>
The force of attraction between the balloon and the rod is 9 x 10⁻³ N.
<h3>
Force of attraction between the balloon and the rod</h3>
The force of attraction between the balloon and the rod is calculated by applying Coulomb's law as shown below;
where;
- r is the distance between the charges
- k is Coulomb's constant = 9 x 10⁹ Nm²/C²
F = (9 x 10⁹) x (2.0 x 10⁻⁸)²/(0.02)²
F = 9 x 10⁻³ N
Thus, the force of attraction between the balloon and the rod is 9 x 10⁻³ N.
Learn more about Coulomb's force here: brainly.com/question/24743340