A 45-kg merry-go-round worker stands on the ride's platform 6.3 m from the center, as shown in Figure 11.
If her speed her) as she goes around the circle is
4.1 m/s, who wie force of friction (Ff) necessary to
keep her from falling off the platform?

Drink a pepsi cherry iced fruit shoot apple juice milkshake mocktail

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.