1. The problem statement, all variables and given/known data The potential at a point is 20 V. Calculate the work done in bringing a charge of 0.5 C to this point. 2. Relevant equations V = Ee / q W = -Ee 3. The attempt at a solution Ee = 10
Answer:
I don't exactly understand this but the child should hear a beep lower than 500 hz when he/she moves the car further away. If you don't find my answer appealing sorry but I don't do physics.
Explanation:
Force Is A Vector That Has Both - Magnitude And Direction !
Answer:
A point on the outside rim will travel 157.2 meters during 30 seconds of rotation.
Explanation:
We can find the distance with the following equation since the acceleration is cero (the disk rotates at a constant rate):

Where:
v: is the tangential speed of the disk
t: is the time = 30 s
The tangential speed can be found as follows:

Where:
ω: is the angular speed = 100 rpm
r: is the radius = 50 cm = 0.50 m
Now, the distance traveled by the disk is:

Therefore, a point on the outside rim will travel 157.2 meters during 30 seconds of rotation.
I hope it helps you!
A. less than
In fact, the resistance will be less than that of the lowest resistance resistor.