Question

plz solve this numerical as soon as possible ku ke yrr icse kaa papar haa plz correct ans kar naa and follow me​

Answer 1

Answer:

1. given . mass of oxygen = 16u

1u = 1.66×10^-27 kg

kg = 16 × 1.66 × 10^ -27

= 26.56× 10^-27

= 2.656 ×10^-26 kg..

2. distance between sun and the earth = time * speed .

=( 8*60 )sec (*3*10^8) m/ sec .

1.44 *10^11 / 10^3 km

= 1.44*10^8 km.

3. The statement the distance of a star from the earth is 8.33 light minutes ... means that the light from the star takes 8.33 mins. to reach earth .

given speed of light = 3 * 10 ^8 m/s

distance covered in 1 sec. = 3* 10^8

time taken =8.33 min = 8.33 *60 sec.

distance = speed * time = 3*10^8 *8.33*60

= 1.5 * 10^11 m.

hope it helps..

plzz mark as BRAINLIEST.

thankyou !

Answer 2

Answer:

bhai intro m state btate hai keval.......