3 - b) weight decreases
4 -a) 50 kg as mass is same everywhere
5 - b) 200 dynes
This is a binary star system
In 2 days there are 48 hours
to find the average speed per hour, divide 2,387 by 48
Which gets you the answer 49.72
Which rounds up to 50
The average speed is 50mph
Answer:
the ans is D... good luck