Salary Range. As of 2011, 10 percent of electrical engineers earned $54,710 or less, according to the Bureau of Labor Statistics. Their median annual earnings were $85,920, meaning half earned more and half earned less.The top-earning 10 percent received $131,660 per year or more.he average electrical engineer earned $42.88 per hour as of 2011, according to the Bureau of Labor Statistics. This comes to an annual full-time income of $89,200 for 2,080 hours of work.
Speed at some instant, or assumed constant during a very short period of time, is called instantaneous speed. By looking at a speedometer, one can read the instantaneous speed of a car at any instant.
Now, the instantaneous velocity at $t=3$ is approximately the slope of the tangent line shown above (approximate because the tangent line shown is tangent to the blue curve and the blue curve approximates the graph of $s$).