A41.0 kg child is riding a playground merry-go-round that is rotating at 60.0 rev/min. what centripetal force (in n) is exerted if he is 1.25 m from its center? (enter the magnitude.)a-wood-floor-with-coeffi cient-of-static-friction-0/

505.94 N

Explanation:

Given

mass of child (m)=41 kg

N=60 rpm

Radius(r)=1.25 m

and centripetal acceleration is given by

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27