It is true, because a strong magnet that can be turned off and on is an electromagnet.
You would<span> have to </span>measure<span> all of </span>the<span> light and heat energy and use E=mc</span>2<span> to calculate </span>the<span> remaining</span>mass<span>. ... </span>After<span> accounting for </span>the<span> increase in </span>mass<span> due to </span>the<span> constituents binding with oxygen as MrSmellard pointed out and allowing </span>the<span> log to cool to </span>its<span> original temperature, </span>the mass<span> of </span>the<span> log will have ...</span>
Answer:
6.05 × 10⁴ cal
Explanation:
Step 1: Given and required data
Mass of water (m): 112 g
Enthalpy of vaporization of water (ΔHvap): 540 cal/g
Step 2: Calculate how much energy is required to vaporize 112 g of water
Vaporization is a physical change in which a substance goes from the liquid state to the gaseous state. We can calculate the energy required (Q) using the following expression.
Q = ΔHvap × m
Q = 540 cal/g × 112 g = 6.05 × 10⁴ cal
It is b i think bc it looks like it would be it and my tudor helped me
Answer:
9. 8.2x10¹⁴ Hz
Explanation:
Wavelength λ = 366 nm
Formula: Frequency = C / λ
To find the wavelength in m,
1 nm = 1.0x10⁻⁹ m
So, 366 nm = ?
= 3.66x10⁻⁷ m
Frequency = 3.0x10⁸m.s-1 / 3.66x10⁻⁷ m
= 8.2x10¹⁴ s-1