Chapter 8.5, Problem 3E

Part IV. Solve the given problem. Show your solution. ~ The electronic force for an electric circuit with a simplified generator is E(t) volts at t seconds, where E(t) = 40 cos 120xt. Find the following: (a) instantaneous rate of change of E(t) with respect to t (b) instantaneous rate of change of E(t) with respect to t at 0.5 sec.

Q4) Consider the function f(x)= x³ -7x+3 = 0. Use Newton Method, find the positive root of f(x)= x³ -7x+3 with an accuracy & = 10-².

a projectile launched at t=0 (t is measured in seconds) follows a path given by x=30t, y=-5t^2+80t, where x is the horizontal direction and y is the upward direction. the projectile lands after  a. 16 seconds b. 8 seconds c. 4seconds

Solve a

sec2 ? dy. tan5 (f)

the velocity of a projectile is found using the function v(t) = t^2 + 16t and is measured in feet per second. what is the distance traveled by this projectile during the first 3 s it is lanched?   A) 32 ft  B) 57 ft  C) 72 ft  D) 81 ft

e(tn3+) =ーi = -i 3.

1) FIND F'6): c. f(x) = x 2- 3x2 F. f) = VI-x

3 (x > 0) intersect at one point, x = r, as shown to the right. Use Newton's 6- The graph of y = x²(x + 3) and y = - method to estimate the value of r. X r= (Type an integer or decimal rounded to four decimal places as needed.) 0 y = x²(x+3) 3 r.- y= txtm X