(A) By J = σE, where J is the current density at a given location in a resistive material, E is the electric field at that location, and σ (sigma) is a material-dependent parameter called the conductivity. =>E = J/σ =>E...

1 Answers · Science & Mathematics · 05/07/2020

By the formula you provide, r = 2T / hpg = 2*0.07199kg/s² / (0.17m * 1000kg/m³ * 9.8m/s²) r = 8.6e-5 m so the diameter d = 2r = 1.7e-4 m = 0.17 mm Hope this helps!

1 Answers · Science & Mathematics · 22/11/2019

... water has a density of 1 gm/

**cm**^3, so our column needs**to**be 15000/49**cm**tall 15000/49 => 306**cm**=> 3.06 meters So a depth of about 10...1 Answers · Science & Mathematics · 23/12/2019

...new load has

**to**be added closer**to**the left string. When they have the same tension, that...500g*g*15cm g cancels I get x = 6.25**cm**= 62.5**mm**from the center If you find this helpful, please select...1 Answers · Science & Mathematics · 13/08/2020

...6.0m * 90K = 0.00918 m = 9.18 mm 3) using α = 24e-6, 0.0066 m... * 135º L = 2.03 cm Whoever made your...answer key did a bad conversion from cm to m. No doubt the answer they want here...

1 Answers · Science & Mathematics · 14/09/2020

...they cancel out, it's much more likely to recognize unit mistakes versus ... should realize that 200 m of 1.4 mm diameter wire can't possibly be this much... have 3.08 * 10^-4 m^3. 8.8 g/ cm ^3 = 8800 kg/m^3 = 2.71 kg For...

3 Answers · Science & Mathematics · 21/05/2020

...ignore relativistic effects Both answers should be rounded

**to**two digits. If you find this helpful, please select Favorite...1 Answers · Science & Mathematics · 08/02/2020

The pressure difference between the ends of the tube is produced by the 40cm height of water: ΔP = ρgΔh = 1000*9.8*0.40 Poiseuille’s formula for flow rate Q = πR⁴ΔP/(8ηL). Q = π(0.0035/2)⁴ * 1000...

1 Answers · Science & Mathematics · 30/08/2020

Considering atoms lined up side to side number of atoms in the thickness = (4 x 10⁻³ mm )/(2.9 x 10⁻⁷ mm ) = 13793 atoms

1 Answers · Science & Mathematics · 14/09/2020

100,000

**cm**= 1,000 m = 1 km forward 1,000,000**mm**= 1000 m = 1 km backward Distance is 2 km. Displacement...2 Answers · Science & Mathematics · 10/09/2020