Which type of star will burn hydrogen in its core?
a. red giant
b. main sequence
c. black dwarf
d. neutron star

The type of star that will burn hydrogen in its core is :
B. Main sequence
currently, about 90 % of the total stars that currently exist are main sequence type of stars

hope this helps

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.