José is pinned against the walls of the rotor, a ride with a radius of 3.00 meters that spins so fast that the floor can be removed without the riders falling. when the ride accelerates to a speed of 17.0 m/s, his angular momentum is 3570 kg m2/s. what is his mass? remember to identify all data (givens and unknowns), list equations used, show all your work, and include units and the proper number of significant digits

70.0 kg

Explanation:

L = mvr

You are solving for m so you change the equation to equal m

m = (L)/vr

m = (3570)/(17)(3)

m = 3570/51

m = 70

His mass is 70 kg.

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

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-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.