Question 1) A transformer has a primary side that contains 1500 turns and it is connected to 120V AC. If a motor connected to the transformer requires 7.5A at 24V, find, (a) the number of secondary turns required. (b) the primary current. Question 2) A single-phase transformer is rated as 250V, 100A. The transformer has copper losses of 450W and iron losses of 225W. Determine the transformer efficiency at full load and 0.8 power factor, PF.

Solve 5 tan x = 5√(3) for 0° ≤ x ≤ 180°. a. 60° b. 150° c. 30° d. 120°

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14