SEXY QUESTION - need help - PHYSICS?

Question

1. A flat circular plate of copper has a radius of .383 m and a mass of 27.7 kg. What is the thickness of the plate? Answer in units of m.
(please show work so i can learn the steps. THANK YOU)

2) The mass of the planet Saturn is 5.64 X 10 to the 26 power kg and its radius is 6 X 10 to the 7 power. Calculate its density. Answer in units of km/m to the 3rd power

(please show work/steps of how you came to the solution - thank you.)

3.)Water flows into a swimming pool at the rate of 9.27 gal/min. If the pool dimensions are 33.4 ft wide, 43.1 ft long, and 15.1 ft deep, how long does it take to fill the pool? (1 gallon = 231 cubic inches). Answer in units of minutes.

(THANK YOU PEOPLE - please show work )

Answer 1

1.) Density of copper: 8.96g/cm^3
V = m/d
V = 27700g/8.96
V = 3091.5cm^3
V = (pi)r^2h
h = V/(pi)r^2
h = 3091.5/(pi38.3)
h = .6708cm = .006708m

2.)V = (4/3)(pi)r^3
V = (4/3)(pi)(6 x 10^7m)^3
V = 9.0478 x 10^23m^3
Density = m/V
D = (5.64 x 10^26)/(9.0478 x 10^23)
D = 623.36Kg/m^3

3.)V = (33.4)(43.1)(15.1) (12in/1ft)^3(1gal/231in^3)
V = 162604gal
t = V/r
t = 162604gal/(9.27gal/m) = 17541min (over 12 days!)

Answer 2

sexy answer!