Answer:
Explanation:
F = Shearing force = 420 N
= Initial length = 2.6 cm
d = Diameter = 3.6 cm
r = Radius = 
E = Young's modulus = 
A = Area = 
Change in length is given by
The shear deformation of the vertebra is
I am pretty sure that non of the listed options above is correct. Current
, resistance, potential difference and induction all don't have the dimension of an energy that d<span>ifference in electrical potential energy should have. Quite a tricky question, be careful.</span>
Answer:
A) A warm wire
Explanation:
A warm wire has the most resistance. Heating the metal wire causes atoms to vibrate more, which in turn makes it more difficult for the electrons to flow, increasing resistance. Heating the wire increases resistivity.
Answer:
2800000J
Explanation:
Parameters given:
Mass = 920kg, weight = 920 * 9.8 = 9016N
Distance = 310m
Angle of inclination = 6.5°
Work done is given as :
W = F*d*cosA
Where A = angle of inclination
W = (9016 * 310 * cos6.5)
W = 2776993.59J
In 2 significant figures, W = 2800000J
