Answer:
Step-by-step explanation:
<u>Electric Field</u>
The electric field produced by a point charge Q at a distance d is given by
Where
The net electric field is the vector addition of the individual electric fields produced by each charge. The direction is given by the rule: If the charge is positive, the electric field points outward, if negative, it points inward.
Let's calculate the electric fields of each charge at the given point. The first charge 
is at the origin. We'll calculate its electric field at the point x=-3.85 cm. The distance between the charge and the point is d=3.85 cm = 0.0385 m, and the electric field points to the left:
Similarly, for 
, the distance to the point is 12 cm + 3.85 cm = 15.85 cm = 0.1585 m. The electric field points to the right:
Since E1 and E2 are opposite, the net field is the subtraction of both
QR/KL=PQ/JK=PR/JL
t/1.5=25/5=22.5/4.5
t/1.5=5=5
t/1.5=5
solving for t:
1.5(t/1.5)=1.5(5)
t=7.5
Answer: t=7.5
Its - 3/2 if you need to know how I solved it, lemme know :)
Answer:
sin(2x)/cos x = 2sin x*cos x/ cos x = 2 sin x = 2
sin x = 1
x = pi/2
but cos pi/2 = 0
so the given equation is indeterminate for x = pi/2
Step-by-step explanation:
<span>We have to choose which statement is correct. Initial investment is $60.00 and it increases by 15 % each year. It means that it increases 1.15 times each year. Therefore this situation can be represented by the exponential function, which has no x intercept. The function is: f ( x ) = 60 * 1.15^x, where x represents years. For x = 6: f ( x ) =60 * 1.15^6 = 138. For x = 7.68 : f ( x ) = 60 * 1.15^7.68 = 180 . For x = 8 : f ( x ) = 60 * 1.15^8 = 183.54 ( rounded to the nearest dollar: 184 ). Answers: B ) This situation can be represented by the exponential function: f ( x ) = 60 * 1.15^x. C ) This function has no x intercept. F ) After 7.86 years the value of the investment will be 3 times the initial value. G ) After 8 years the value of the investment will be $184. </span>
