1. A 32-inch monitor contains 3840 x 2160 picture elements, or pixels. Each pixel is represented in 24 bits of memory. A byte of memory is 8 bits.
a. How many megabytes (MB) of memory are required to store the information displayed on the monitor?
b. To display a video on the monitor, the image must be refreshed 30 times per second. How many terabytes (TB) of memory are required to store a 2 hr video?
c. For the video described in part (b), how fast must the image data in memory be moved to the monitor? Express your answer in gigabits per second (Gb/s).

2. When a car has a dead battery, it can often be started by connecting the battery from another car across its terminals. The positive terminals are connected together as are the negative terminals. The connection is illustrated in fig. P1.12. Assume the current I in fig. P1.12 is measured and found to be 40 A.
a. Which car has the dead battery?
b. If this connection is maintained for 1.5 min, how much energy is transferred to the dead battery?

A 12V 12V Figure P1.12