A jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure. The horizontal steel beam had a mass of 88.50 kg per meter of length, and the tension in the cable was =12170 N . The crane was rated for a maximum load of 500 kg . If =5.290 m , =0.558 m , =2.000 m , and ℎ=2.160 m , what was the magnitude of L (the load on the crane) before the collapse? The acceleration due to gravity is =9.810 m/s2 .

Atown is considering building a biodiesel power plant that would burn biomass to generate electricity. which of the following correctly lists an advantage and a disadvantage of this project?

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

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?