Answer:
The rocks location is underneath an ocean or mountain
Explanation:
Silicic rock are igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually defined as at least sixty three percent. Granite and rhyolite are the most common silicic rocks found. These are found in the magma of the Earth.
Silicic is the group of silicate magmas which crystallise a relatively small proportion of ferromagnesian silicates. The main constituents of a silicic rock will be minerals rich in silica-minerals mainly.
Soil<span> can be used to </span>generate electrical<span> power in microbial fuel cells (MFCs), which convert chemical energy from </span>soil<span> organic compounds into </span>electricity<span> via catalysis by </span>soil<span> source exoelectrogenic microorganisms. The process of </span>soil<span> power generation has several potential applications. </span>
Answer:
Explanation:
Q = m c Δt
heat withdrawn to lower temperature by 40° C
Q = 1 X 1000 X 40 = 40,000 calories.
Q = mL
heat withdrawn to freeze water at 0°C to ice
= 1 x 80000 = 80,000 calories
total heat to be withdrawn = 120,000 calories. = 120,000 x 4.2 = 504 ,000 Joules.
Since the density of water is 1g/cm^3, The mass of water needed to fill the tank is 150000 grams
To calculate that, we'd need to know the coefficient of static friction between the block and the surface, which you haven't told us.
