Now desmond and cherie tackle a homework problem. two wave pulses travel on a string toward each other. the wave pulses can be described as y1 = 5 (kx − ωt)2 + 2 and y2 = −5 (kx + ωt − 6)2 + 2 , where k = 2 rad/m and ω = 5 rad/s. at what instant do the two cancel everywhere? (assume x is in meters and t is in seconds.)

Which object is most likely represented by a dot?

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

Estimate the change in the gibbs energy and molar gibbs energy of 1.0dm3 of octane when the pressure acting on it is increased from 1.0 atm to 100 atm. the mass density of octane is 0.703 g cm−3