Hello there!
You need to use the correct formula for that:
Average speed = total distance/ total time needed
Average speed = (54 + 85)/(1 + 3)
Average speed = 139/4
Average speed = 34.75 kilometers per hour
As always, it is my pleasure to help students like you!
Answer:
C. loses heat, temperature decreases
Explanation:
When gas condenses, energy decreases, therefore it would lose heat and the temperature would decrease.
Answer:
4.96 km/hr
Explanation:
Given that,
A person is running west in Moscow at 2.1 km/hr relative to the ground
Another person is jogging east at 4.5 km/hr.
We need to find the velocity of the jogger relative to the ground. Using the concept of relative speed, let V is the required velocity. So,
So, the velocity of the jogger relative to the ground is 4.96 km/hr.
Answer:
Looks like A but I'm not sure.
Explanation:
dont take my word for it I might be wrong