Average velocity is different than average speed because calculating average velocity involves Momentum.
Answer:10.02 m/s
4.68 m/s
Explanation:
Given
height of building=4 m
time taken=1.5 s
(a)Let u be the initial velocity
using equation of motion
u=10.02 m/s
(b)Velocity of keys just before keys were caught
Answer:
Explanation:
a ) Current remains the same throughout the whole of a closed circuit if all the resistances are in series. So current will remain the same in both these conductors as they are in series.
b ) If the two wires are switched or exchanged mutually , there will not be any change in the current are they will still remain in series and total resistance remains the same . so current will remain the same . Hence the current through the bulb will remain unchanged . The brightness too will remain the same.
Part of the cell that stores food is called vacuole
