Use these numbers: the mass of the man is 75.0 kg, and the mass of the daughter is 25.0 kg. halfway through the process, the man and the daughter are each traveling with speeds of 1.20 m/s, with the man's velocity directed toward one end of the canoe and the daughter's velocity directed toward the other end of the canoe. that is all as measured by a stationary observer on the shore. as seen by that same stationary observer on the shore, what is the speed of the canoe at this instant? m/s

Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

Name two kinds of practical electric pumps.