You are working during your summer break as an amusement park ride operator. the ride you are controlling consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the floor drops away (fig. p6.7). the coefficient of static friction between a person of mass m and the wall is ms, and the radius of the cylinder is r. you are rotating the ride with an angular speed v suggested by your supervisor. (a) suppose a very heavy person enters the ride. do you need to increase the angular speed so that this person will not slide down the wall? (b) suppose someone enters the ride wearing a very slippery satin workout outfit. in this case, do you need to increase the angular speed so that this person will not slide down the wall?

A

Explanation:

because if a very heavy person ride they can slow down the ride

-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

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-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