3. a savings account is started with an initial deposit of $500. the account earns 1.5% interest compounded annually. (a) write an equation to represent the amount of money in the account as a function of time in years. (b) find the amount of time it takes for the account balance to reach $800. show your work.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.