What might be collected to monitor the amount of excess nitrogen in the local water system

Physics

1 answer:

Debora [2.8K]3 years ago

4 0

Answer:

If excess nitrogen is found in the crop fields, the drainage water can introduce it into ... have aquifers that can supply a lot of freshwater very near the land surface.

You might be interested in

At a certain altitude above the Earth's surface, the electric field has a magnitude of 135 V/m. How much energy is stored in 1.0

Paul [167]

Answer:

Explanation:

Given that,

Electric field E=135V/m

Energy stored in 1m³of air=?

The energy stored in an electric field is given as

u = ½ εo E²

Where

U is the energy stored

εo is permissivity and it value is 8.85×10^-12C²/N..m²

And E is the electric field

Then,

U=½×8.85×10^-12×135²

U=8.06×10^-8J/m³

Then, the energy stored in 1m³ of air is 8.06×10^-8 J/m³

4 0

3 years ago

What is the kinetic energy of a 2,000-kg boat moving at 5.0 m/s?

vlada-n [284]

Answer:

25kJ

Explanation:

K = 1/2 mv^2 = 1/2 x 2000kg x (5.0m/s)^2

= 25 x 10^3 J = 25kJ

6 0

3 years ago

To meet a U.S. Postal Service requirement, employees' footwear must have a coefficient of static friction of 0.5 or more on a sp

liq [111]

Answer:

Minimum time interval (t2)=0.90 SECONDS

Explanation:

coefficient of friction for employees footwear = 0.5

coefficient of friction for typical athletic shoe = 0.810

frictional force = coefficient of friction X acceleration due to gravity X mass of body
Acceleration due to gravity is a constant = 9.81 m/s
Let frictional force for employee footwear = FF1
Let frictional force for athletic footwear =FF2

FF1 = O.5 X 9.81 X mass of body

= 4.905 x mass of body

FF2 = 0.810 X 9.81 X mass of body

= 7.9461 x mass of body

The body started from rest there by making the initial velocity zero ( u = 0)

From d= ut + 1/2 a x $t^{2}$