Answer:
your pretty no matter what others say
Explanation:
The most common group of silicates is quartz. Silicate minerals is the most abundant mineral found in the crust. About 90% of the crust contains these minerals. Silicate minerals includes quartz, mica, feldspar, pyroxene, amphobole and olivine. About 12% of these silicates is quartz.
Answer:
4.25 mm
Explanation:
σ = E ∙ ∆L/L₀
where σ is stress,
E is Young's modulus,
and ∆L/L₀ is strain (∆L is the deflection, L₀ is the initial length).
Plugging in values:
1.53×10⁸ Pa = (1.8×10¹⁰ Pa) ∆L / (500 mm)
∆L = 4.25 mm