A laptop computer communicates with a router wirelessly, by means of radio signals. The router is connected by cable directly to the internet. The laptop is 8.9 m from the router, and is downloading text and images from the internet at an average rate of 160 Mbps, or 160 megabits per second. (A bit, or binary digit, is the smallest unit of digital information, 1 megabit per second is 1x106 bits per second.) On average, how many bits are downloaded to the laptop in the time it takes the wireless signal to travel from the router to the laptop?

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

their crystal patterns have been disrupted by stress