Both require long periods of time to occur (possibly hundreds of years I think)
Answer:
option 2 is correct
Explanation:
the angle between p*q and p+q is 90 degree which is equal to π/2
it is rule that product of two vectors is always perpendicular to the plane in which both the vector lie
The correct answer is A. Electromagnetic waves can transfer energy without a medium. Heat can be transferred through a vacuum only via radiation. Infrared waves are electromagnetic waves that does not require a medium to travel. Heat is transferred in a vacuum in the form of infrared waves.
Answer:
The core is the only layer of the Sun where energy is produced because that is where the fusion process occurs between hydrogen and helium atoms.There, the hydrogen atoms being converted into helium molecules.
HOPE IT HELPS!
Answer:
average shear strain in the rubber is 0.25rad
Explanation:
The base has a dimension of 20mm and 50mm.
frictional force is 50 N
using the expressed shear stress,
we will determine τ = 
τ = 50 / 1000
= 0.05MPa
shear stress τ = γ .G
τ = shear stress
γ = shear strain
G = 0.20MPa
γ = τ / G
= 0.05 / 0.20
= 0.25rad
average shear strain in the rubber is 0.25rad
