The earth travels at 68,000 miles/hour as it moved around the sun. How many miles does the earth travel in one trip around the sun

595,680,000 miles

(= 5.96 x 10⁸ miles)

Explanation:

we are given the speed of travel as 68,000 mi/hr

if we assume one common year

= 365 days

= 365 days x 24 hours/day

= 8760 hours

Then the distance travelled

= speed x time

= 68,000 x 8760

= 595,680,000 miles

= 5.96 x 10⁸ miles   (rounded to 3 sig. fig and expressed in scientific form)

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

the bal will not change its velocity.