3. The doctor notices that Janet has long fingernails, and comments that fingernails grow at a rate (or speed) of 2.50 cm / year. Convert this speed to kilometers / second. Show your work. (6 pts)

7.93 × 10⁻¹³ km/s

Explanation:

Step 1: Given data

Rate of growth of the fingernails (r): 2.50 cm/year

Step 2: Convert "r" from cm/year to km/year

We will use the following conversion factors.

Step 3: Convert "r" from km/year to km/s

We will use the following conversion factors.

2.50 cm/year is equal to 7.93 × 10⁻¹³ kilometers/second.

i don,t know so just answer mine

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.