well that be 1 and 2/3
to check just add 1 and 2/3 + 3 and 1/3 and get 5
Answer:
93312000 Joules
Explanation:
Energy can be explained as the capacity for doing work. And can be expressed as
E= pt....................eqn(1)
Where
E= Energy in Joules
P= power in Watt= 2.00W
t= time in seconds
Time= 18 months, which can be converted to "seconds" as;
18 months = [ 18 monthsx 30 days x 24 hours x 60 min x 60 sec] = 46656000
Then
time= 46656000 seconds
Power=2 watt
If we substitute into equation (1) we have
Energy = 2 watt × 46656000 seconds
Energy= 93312000 Joules
The answer is D. A planet
Considering that the book is moving with constant speed, the force applied by Anna must be the same that the friction force:
If we clear the previous equation:
Mass and velocity that is your answer