Answer:
the magnitude of the vector is 44,40 units
Explanation:
Using the Pythagoras theorem

All isotopes contain different number of neutrons then the original element
The velocity vector will move you 200 miles east in 4 hours traveling at a constant speed is 50 mph. Below is the solution:
Given:
200 miles
4 hours
200 miles/ 4 hours = 50 mph, east
Hope it helps.
Answer:
6736 J
Explanation:
Knowing that Q = cmΔT:
Q = 4.184 J/(g·°C) · 28.6g · (78.3 °C - 22.0 °C) = 6736 J.