Recent content by BlackOut07

Homework Statement A security PIN code is four digits long. Each digit could have the value 0 to 9. if an office building needs 10 security PINs, express the number of codes in logarithmic form with base 10 The Attempt at a Solution y=4log(x-10) I don't know how to do the...

i still don't understand to be honest :/

the maximum of this graph is 0.25 :/ i got the answer as a=-328.365.

no, i have it second semester. and the answer is STILL 0 :/

so would it be a=(5sin120pi(1.001))-(5sin120pi(0.999))/(1.001-0.999)

a=(5sin120pi(1))-(5sin120pi(0.999))/(1-0.999) =0?? doesn't make sense though

Homework Statement 1) When a pendulum 0.5m long swings back and forth, its angular displacement Ɵ from rest position, in radians is given by Ɵ=1/4sin((pi/2)t), where t is the time, in seconds. At what time(s) during the first 4 s is the pendulum displaced 1 cm vertically above its rest...