Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak. The loudness of Bettina's voice was changed by what type of energy?

Which factors affect the speed of ocean waves?

In Hydroelectric power plant in the energy from moving water is converted into electric powered what kind of energy transformed occurs when the energy is converted

The moon is a satellite that orbits the earth at a radius of 3.85 * 108 m. The mass of the earth is 5.98 * 1024 kg. What is the orbital speed of the moon?

The refractive index of a transparent material can be determined by measuring the critical angle when the solid is in air. if? c = 41.3 what is the index of refraction of the material?

What behavioral characteristic do neurons share with muscle?

What career has to do with one of these listed ... fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.

An object is suspended from the ceiling with two wires that make an angle of 40° with the ceiling. The weight of the body is 150 N. What is the tension in each wire? 41.6 newtons 82.3 newtons 150 newtons 117 newtons

What is the value of 9682 when rounded to three significant figures

Why do atoms move at different speeds depending on wether they are liquids or solids

What are the arrangement of resistors in series