Explanation:
wavelength =200cm=2m
frequency is reciprocal of wavelength
f=1/2
f=0.5Hz or 1/s
Answer:
Gamma rays is the correct answer.
Explanation:
Answer: At the period that's between its peaks of brightness and its luminosity.
Explanation:
The two observable properties of a cepheid variable that are directly related to one another at the period between its peaks of brightness and its luminosity. The period-luminosity relation allows us to determine its luminosity from the period between its peaks of brightness. In astronomy, a period-luminosity relation is a relationship linking the luminosity of pulsating variable stars with their pulsation period. The popular relation, for Classical Cepheid variables, is also called Leavitt's law
Answer:
With the development in technology scientists now have improved ways to predict future climates based on past data and past accuracy in such predictions. Researchers can predict future climates by entering past climate data into a computer program if it accurately provides current climate based on data from the past, then we can also predict future climate.
Explanation:
Climate Change is the different changes in the Earth's climate. These changes include changes in some Earth's climate such as temperature, precipitation, rising sea levels.
Over the years, the climate of the Earth continued to get worst, majorly due to the numerous activities of humans which has negatively affected Earth's climate. Some of the scientific research shows increased deforestation, the use of power plants, vehicles, and industries that still uses fossil fuels emit carbon dioxide which traps heat in the atmosphere, are some of the numerous activities of humans that have led to climate change. Using clean and renewable energy sources, preventing deforestation, are some of the ways to improve the climate.
The angular velocity of the wheel at the bottom of the incline is 4.429 rad/sec
The angular velocity (ω) of an object is the rate at which the object's angle position is changing in relation to time.
For a wheel attached to an incline angle, the angular velocity can be computed by considering the conservation of energy theorem.
As such the total kinetic energy (K.E) and rotational kinetic energy (R.K.E) at a point is equal to the total potential energy (P.E) at the other point.
i.e.
P.E = K.E + R.K.E
Therefore, we can conclude that the angular velocity of the wheel at the bottom of the incline is 4.429 rad/sec
Learn more about angular velocity here:
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