Answer:
A = 4.49
α = 57.72°
Explanation:
Knowing the magnitude of x & y of a vector we can determine the total magnitude of a vector.

The angle tangent can be used to determine the angle.

Because of Gravity, Basically a force so strong it constantly pulls us to the earth with 1 G (Maybe 100 pounds of force constantly pulling us to the earth)
Answer:
2.36 x 10^6 Hz
Explanation:
We know ;,
Iamp = 1.8mA
L = 0.45mH
VL = 12V
VL = IwL
VL = I x 2π x f x L
f = VL / (I x 2π x L)
f = 12 V/ (1.8mA x 2π x 0.45mH)
f = 12/(1.8x10^-3 x 2π x 0.45 x 10^-3)
f = 2.36 x 10^6 Hz
Answer: 71.72 days
Explanation:
This problem can be solved using the <u>Radioactive Half Life Formula: </u>
(1)
Where:
is the final amount of Iodine-131
is the initial amount of Iodine-131
is the time elapsed
is the half life of Iodine-131
Knowing this, let's substitute the values and find
from (1):
(2)
(3)
Applying natural logarithm in both sides:
(4)
(5)
Finding
: