Explanation:
Given that,
Mass of block = 2.00 kg
Spring constant = 10.0 N/m
Initial amplitude
Final amplitude
Number of oscillation = 4
(a). We need to calculate the time
Given formula,
Put the value into the formula
We need to calculate the value of b
Using damping formula
(b), The damping force equation is
We know that,
The time period is
Therefore, time period is affected by damping force.
Hence, This is the required solution.
Answer:
A. Nuclear and fossil fuel-burning power plants differ mainly in where their energy comes from; a nuclear reactor produces heat from radioactive metals, and a fossil-fuel plant burns coal, oil or natural gas.
B. Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels
C. These are energy sources that are constantly being replenished, such as sunlight, wind, and water.
The most popular renewable energy sources currently are:
Solar energy.
Wind energy.
Hydro energy.
Tidal energy.
Geothermal energy.
Biomass energy.
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Answer:
physical property
Explanation: Some substances exist as gases at room temperature (oxygen and carbon dioxide), while others, like water and mercury metal, exist as liquids.
Answer:
Explanation:
From the question we are told that:
Emissivity
Absorptivity
Rate of solar Radiation
Generally the equation for Surface absorbed energy is mathematically given by
Generally the equation for Emitted Radiation is mathematically given by
Where
T=Temperature
Therefore
Answer:
8.0 x 10^-5 km
Explanation:
T1 = 20 days, r1 = 2.0 x 10^-5 km
T2 = 160 days, find r2.
By Kepler's 3-rd law, T^2 is proportional to r^3, so
T1^2/r1^3 = T2^2/r2^3
so r2 = r1*(T2/T1)^(2/3) = 2.0 x 10^-5 * (160/20)^(2/3) = 8.0 x 10^-5 km