Answer:
25g
Explanation:
Given parameters:
Half life of X = 5days
Mass of sample of radioactive elements = 100g
The half-life of a radioactive material is the time it takes for a sample to decay by half. At the half-life, an original sample would have yielded equal daughter to parent ratio.
At time (days) Mass of sample
0 100g
5 50g
10 25g
Every 5 days, the sample will split into half.
Therefore, 25g will remain after 10days.
Answer:

Explanation:
From the question we are told that
Height of circular cylinder is 
Diameter of cylinder
Horizontal Force 

Generally the formula for shear modulus is mathematically represented by

Where







Answer:
A
Explanation:
More potential energy equals more kinetic
When a wire is made shorter, the resistance decreases.
When a wire is made thinner, the resistance increases.
Answer:
45°
Explanation:
I = Polarized light after 3 filter = 0.5 W/m²
= Initial light intensity = 4 W/m²
The intensity of polarized light is given by

Hence, the angle relative to the vertical was the light initially polarized is 45°