Answer: holding the ball in the air without moving it
Explanation:
When the ball goes up it’s potential energy
Answer:

Explanation:
Given that,
The ray makes an angle of 32 degrees with respect to the normal of the surface.
The refractive index of air, 
The refractive index of water, 
Snell's law is given by :



So, option (4) is correct. Hence, this is the required solution.
Answer:
a force that pushes down on things
Just remember
Voltage = current times resistance
current = voltage over resistance
Current = 9/3 = 3
Answer:
The circuit contains a filament bulb, connected with terminal to a terminal.
Explanation:
The base of the electric bulb and the metal tip of the base are the two terminals of the bulb. One is called a positive terminal while the other is called a negative terminal. The filament of the electric bulb is connected to its terminals.