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Where is hydroelectric energy utilized?
Hydroelectric energy is utilized in various countries around the world, especially where there are rivers or waterways with strong flowing water that can be harnessed to generate electricity. Some notable examples include China, Brazil, Canada, and the United States.
What properties ofthe wave define why is it found within this area of the specspectrum?
The wavelength and frequency of the wave determine its position in the electromagnetic spectrum. Longer wavelengths correspond to lower frequencies, while shorter wavelengths correspond to higher frequencies. Each region of the spectrum has unique properties and uses based on the interactions of the electromagnetic waves with matter.
A solid rectangular block of metal 49cm by 44cm by 18cm is melted and formed into a solid sphere find the radius ofthe sphere?
To find the radius of the sphere, we need to know that the volume of the rectangular block is equal to the volume of the sphere. The volume of the rectangular block is 49 x 44 x 18 = 38,808 cm³. Equating this to the volume of a sphere (4/3πr³), we can solve for the radius which comes out to be approximately 22.18 cm.
Which two factors can be caclulated to determine the kinetic energy of an object?
The kinetic energy of an object can be calculated using the formula: KE = 0.5 x mass x velocity^2, where mass is the object's mass in kilograms and velocity is the object's speed in meters per second. So, the two factors are the object's mass and its velocity.
Are the forces balanced on Venus's?
No. If all forces acting on the planet were balanced and their sum were zero, then Venus would bemoving in a straight line. Instead, it's moving in a path that's nearly a perfect circle, because ofthe force of gravitation constantly attracting Venus and the sun toward each other.
