Part A Copper, 9.0 x 10^-3 kg/cm^3 Expressed your answer with the appropriate un

ID: 1307980 • Letter: P

Question

Part A

Copper, 9.0 x 10^-3 kg/cm^3

Expressed your answer with the appropriate units.

Value = Units =

Part B

Water, 1.0 g/cm^3

Express your answer with the appropriate units.

Value = Units =

Part A

What is the rock's velocity as it hits the bottom of the hole?

Express your answer with the appropriate units.

Value = Units =

Part B

How long is the rock in the air, from the instant it is released until it hits the bottom of the hole?

Express your answer with the appropriate units.

Value = Units =

A) Express your answer with the appropriate units. Value = Units =

B) Express your answer with the appropriate units Value = Units =

C) Express your answer with the appropriate units. Value = Units =

*Please make sure you sepearate your answers so i will know which ones you are answering thank you*

A) 9.0E-3 kg/cm^3 = 9.0E-3*10^6 = 9000 kg/m^3

B) 1 g/cm^3 = 1000 kg/m^3

2) a) v^2 = v0^2 + 2 a y

v = sqrt(13^2 -2*9.81*-10)=19.11 m/s

b) y = y0 + v0y t + 1/2 a t^2

-10 = 13*t - 0.5*9.81*t^2
t=3.27 s

3) a) x = 3*4^2 - 1*4 + 4 = 48 m

b) v = dx/dt = 9 t^2 - 1

so v = 9*4^2-1= 143 m/s

c) a = dv/dt = 18 t = 18*4 = 72 m/s^2

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