V = d/t = 10m / 5 s = 2m/s
point a to point b = 2m/s
point b to point a = 2m/s
avg speed = (2m/s+2m/s)/2 = 2m/s
avg velocity= (2m/s+2m/s)/2 = 2m/s
Answer:
The resistivity of the wire is
Explanation:
We have,
Length of a wire is 40 cm or 0.4 m
Diameter of a wire is 0.60 mm
Radius is 0.3 mm or 0.0003 m
Resistance of a wire is 1.5 ohm
Now we need to find the resistivity of the material of which it is made. The resistance of a wire in terms of its resistance, length and area is given by :
= resistivity
So, the resistivity of the wire is .
Answer:
C.
Measure the wear on his treads before and after riding a certain number of laps.
Answer:
It increases in depth, indicates the heat flowing from earths warm interior to its surface
Mass of solid cube = 725g = 0.725kg Length of each side = 6.35cm =0.0635 m As volume = length ×length×length Volume= 0.0635×0.0635×0.0635 =0.1905 m³ ρ = m/V ρ= 0.725/0.1905 = 0.138 kg/m³ Answer