Answer:
q = 27.16 C
Explanation:
For this exercise we use the equations of equilibrium. Let's set a reference system with the x-axis horizontally.
X axis
F_e - Tₓ = 0
Axis y
T_y -W = 0
let's use trigonometry
cos θ = T_y / T
sin θ= Tx / T
T_y = T cos θ
Tₓ = T sin θ
Axis y
T cos θ = W
T = mg / cos θ
X axis
F_e = T sin θ
qE = T sin θ
q =
q =
q =
in the exercise they indicate that the electric field is the month of birth E = 8 N / C and the angle tea = 30º
let's calculate
q = 0.2 9.8 8 / tan 30
q = 27.16 C
Answer:
The 15 ⁰C measured at this altitude is above the standard temperature for the altitude.
Explanation:
The standard temperature at sea level is 15 degrees Celsius. It decreases about 2 degrees C (or 3.5 degrees F) per 1,000 feet of altitude above sea level.
235 meters is equal to 771 feet.
Using the formula below, we can estimate temperature loss due to this change in altitude, that is 771 feet above sea level.
temperature loss = (3.5 x Change in altitude)/1000ft
temperature loss = (3.5 x 771ft)/1000ft = 2.7⁰F, (32 -2.7 = 29.3 ⁰F)
this is equivalent to 1.5⁰C temperature loss.
Thus, the standard temperature of the engineering quadrangle at 235 meters above sea level is 13.5 ⁰C.
Therefore, the 15 ⁰C measured at this altitude is above the standard temperature for the altitude.
Hypnosis may not be completely reliable in most cases.
<span>since copper wire non-ohmic then the answer is 2. As the voltage across a non-ohmic conductor such as a bulb increases, the electrons carry more energy. When they collide with metal atoms in the conductor, they transfer more energy. This makes the atoms vibrate more and more. This increases the resistance and the temperature, and causes the shape of the graph seen above.</span>