A person takes a trip, driving with a constant speed of 99.5 km/h, except for a 26.0-min rest stop. The person's average speed i
s 73.6 km/h. a) How much time is spent on the trip? (in h) b) How far does the person travel? (in km)
1 answer:
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The momentum of ball is given by:
Since both have the same momentum, we have:
Number 3
If you notice any mistake in my english, please let me know, because i am not native.
Since both have the same momentum, we have:
Number 3
If you notice any mistake in my english, please let me know, because i am not native.
Answer:
a) 6.4 kJ
b) 43.4 kJ
Explanation:
a)
= Heat absorbed = 37 kJ
= Coefficient of performance = 5.8
= Work done
Heat absorbed is given as
=
37 = (5.8)
= 6.4 kJ
b)
= work per cycle required
=
+
= 37 + 6.4
= 43.4 kJ