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3 years ago

What do fertilisers contain that make plants and algae grow faster

Physics

1 answer:

tresset_1 [31]3 years ago

7 0

Answer:

it contains nitrogen, potassium and phosphorus

Explanation:

the fertilisers contain nitrogen potassium and phosphorus . this makes the plants and algae grow faster.

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A glider of mass 0.240 kg is on a frictionless, horizontal track, attached to a horizontal spring of force constant 6.00 N/m. In

Sveta_85 [38]

Answer:

$E_M=0.0492J$ .

Explanation:

The mechanical energy of the system will be the kinetic energy plus the elastic potential energy: $E_M=K+U_e$ .

We know that the equation for the kinetic energy is $K=\frac{mv^2}{2}$ , where m is the mass of the object and v its velocity.

We know that the equation for the elastic potential energy is $U_e=\frac{k\Delta x^2}{2}$ , where k is the spring constant and $\Delta x$ the compression (or elongation) respect to equilibrium.

So for our values we have:

$E_M=K+U_e=\frac{mv^2}{2}+\frac{k \Delta x^2}{2}=\frac{(0.24kg)(0.4m/s)^2}{2}+\frac{(6N/m)(0.1m)^2}{2}=0.0492J$ .

6 0

3 years ago

Scott is making a chart to show the difference between chemical reactions and nuclear reactions. Which part of his chart is inco

Nimfa-mama [501]

Answer:

The incorrect part of the chart is;

Line 1

Chemical ${}$ Reaction ${}$ Nuclear Reaction

Line 1 Happens in the nucleus of atoms ${}$ Happens between atoms

Explanation:

The given chart can be presented as follows;

Chemical Reaction ${}$ Nuclear Reaction

1. Happens in the nucleus of atoms ${}$ Happens Between atoms

2. Forms new compounds ${}$ Forms new atoms

3. Involves small amounts of energy ${}$ Involves large amounts of energy

From the above chart, line 1 is incorrect because a chemical reaction happens between the valence electrons of the reacting atoms while a nuclear reaction is the reaction that takes place between the nucleus of two or more atoms or the nucleus of an atom and a subatomic particle to produce one or more than new nuclide of a new atom with a change in the mass of the nucleus being represented by the large amount of energy in the reaction. Therefore, a nuclear reaction takes place in the nucleus of an atom, forms new atoms and involves large amounts of energy

The correct arrangement is presented as follows;

Chemical Reaction ${}$ Nuclear Reaction

1. Happens Between atoms ${}$ Happens in the nucleus of atoms

6 0

3 years ago

A liquid in a given capillary tube always rises up to a fixed height but not infinitely why

podryga [215]

The answer is; the density of the liquid suppresses the height to which it can rise

The density acts in the opposite direction of capillary action. Capillary action allows the liquid to rise in the tube and the narrower the tube the higher the capillary action and the higher the liquid rises. The denser the liquid however, the lower it will rise. The column stops rising when the capillary force is balanced by the weight of the rising liquid due to gravity.

6 0

4 years ago

What will terminal velocity look like on a velocity v. time graph?

mrs_skeptik [129]

The horizontal is s or displacement
The vertical is t or time

3 0

2 years ago

If I have an object that starts from rest and reaches a velocity of 25m/s over a distance of 11m what is the acceleration of the

Elodia [21]

Answer:

Here is something that may help you!!

Explanation:

I found it in a cite (not that I'm plagiarizing, or anything).

3 0

3 years ago