Help pls! An ocean wave has a frequency of 0.2 waves/second, and a wavelength of 10 meters/wave. Use the equation speed=wavelength x wave frequency to calculate the speed of the wave

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

How many neutrons does plutonium -196 with an atomic number of 78.