Answer:
16J
Explanation:
From hookes law
The work done in a spring is given as W =1/2ke^2
Given that the force constant (k) is constant in the spring material
We have that 2W = e^2
Let W1 = 4J e1= 2cm e2 = 4cm
Let W2 be the work required to stretch it an additional 4cm
W1/ W2 = e1^2/e2^2
W2 = W1* e2^2 / e1^2
= 4* 4^2 /2^2
=4× 16 / 4
= 16J
Answer:
F = 0.408 N
Explanation:
It is given that,
Weight of a wooden block, W = 8 N
Weight, W = mg
m is mass of wooden block
Acceleration of the block, a = 0.5 m/s²
Force, F = ma
So, the magnitude of force applied to the wooden block is 0.408 N.
Answer:
0%
Explanation:
There is no purple geneotype with either parents so there will be 0 purple and 100% white