Question $4$

$1/10$ points

A LASIK vision correction system uses a laser thas emits $10$ ns long pulses of light, each with $2\mathrm{.}5$ mJ of energy. The laser is focused to a $0\mathrm{.}05$ mm diameter circle. What is the magnetic field strength of the laser ight at the focus point?

Answer:

$1\mathrm{.}47{10}^A-5T$

Quevitan $5$

$1/10$ points

The energy flow to the earth from surifigh is ibout $1\mathrm{.}40k\frac{W}{m^2}.$ The distance from the earth to the sum is about $1\mathrm{.}50{10}^{11}m$ What is the total power radated by the sun?

Answer:

$4010*26W$

Could you help me solve both questions please?