Answer:
P=2736 Pa
Explanation:
According to Newton we have that:
∑
A force is exerted by the elevator to the suitcase, according to 3th Newton's law an equal force but in the opposite direction will appeared on the suitcase, that is:
∑

We know that the pressure is given by:
Light waves travel in straight lines when they are travelling in a uniform medium. This is because the waves are travelling at the same speed.
Electrostatic attraction. The stronger the electric field, the greater the electrostatic force.
Answer:
C. lonic bonds involve the transfer of electrons between ions, while
Van der Waals forces involve the attraction of nonpolar molecules.
Explanation:
Just did it