Answer:
Explanation:
Deflection in the drop is due to electric field force
so we will have
acceleration of the drop is given as
now we know that time to cross the plates is given as
now the deflection is given as
Answer:
Option A.
A fan is turned from high speed to low speed.
Explanation:
It is important to note that air is also a fluid.
In a system, static pressure of air increases with the speed of rotation of the fan. This is because when the speed of the fan is increased, the force with which it is pushing the air molecules is increased. Since pressure is a relationship between force and area, the pressure of the air molecules will be increased.
Conversely, when the speed of the fan is reduced, the priming force on the air molecules will be reduced, hence the pressure of the air will drop.
This makes option A the correct option
Fnet = (mass) (acceleration)
= 11 kg x 3.7m/s^2
= 41 N
A baseball would hit the bat harder. This is because the baseball is a lot heavier and more dense than the plastic ball. The keyword that you're looking for is density. The baseball is dense.
These applications DO NOT INVOLVE harmful ionizing energy:
- MRI
- ultrasound
- laser surgery
