Sphere a is attached to the ceiling of an elevator by a string. a second sphere is attached to the first one by a second string. both strings are of negligible mass. here m1 = m2 = m = 3.14 kg.(a) the elevator starts from rest and accelerates downward with a = 1.35 m/s2. what are the tensions in the two strings in newtons? t1 = nt2 =.(b) if the elevator moves upward instead with the same acceleration what will be the tension in the two strings in newtons? t1 = = .(c) the maximum tension the two strings can withstand is 92.6 n. what maximum upward acceleration (in m/s2) can the elevator have without having one of the strings /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?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.