A-The trip is 6.38 hours long B-The average velocity would be 76.8 km/h
The force F exerted by an electric field on a test charge q is given by:
From this equation we notice that if we change the test charge then the force will change as well.
Therefore, the forces on the charges will not be the same.
We can't determine the electric field without further information on the problem; we need the force on one of the test charges to determine the magnitude of the field.
Answer:
2 kg
Explanation:
Assuming the rod's mass is uniformly distributed, the center of mass is at half the length.
Sum of the moments at the balance point:
-(Mg)(L/3) + (mg)(L/2 − L/3) = 0
(Mg)(L/3) = (mg)(L/2 − L/3)
(Mg)(L/3) = (mg)(L/6)
2M = m
M = 1 kg, so m = 2 kg.
The mass of the rod is 2 kg.
Answer:
apply a voltage to a cable a current is created that increases linearly with the voltage
Explanation:
apply a voltage to a cable a current is created that increases linearly with the voltage according to the ohm ratio
V = I R
Where R is the resistance of the wire
If the applied voltage is high, the amount of current is also high, which is why when there are many electrons displacing ce, the shock between them increases significantly, causing an increase in the temperature of the cable that is reflected in an increase in resistance, for which continue to comply with Ohm's law the current should be a little lower
Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Slope Formula:
Explanation:
<u>Step 1: Define</u>
Point (0, -1)
Point (3, 0)
<u>Step 2: Find slope </u><em><u>m</u></em>
- Substitute:
- Add/Subtract: