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GarryVolchara [31]
3 years ago
7

Which substance is used in fertilizers?

Physics
2 answers:
SOVA2 [1]3 years ago
6 0
I believe the correct answer would be HNO3 or nitric acid. Important nutrients for plants are the elements nitrogen, phosphorus and potassium or the NPK. These substances are what makes most of the fertilizer mixture. So, from the choices it should be the one that contains any of these elements.
finlep [7]3 years ago
6 0

Answer:

HNO3 or nitric acid

Explanation:

correct answer

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Find the work w1 done on the block by the force of magnitude f1 = 65.0 n as the block moves from xi = -3.00 cm to xf = 3.00 cm .
inn [45]
W = F•dx
F = 65 N,
dx = xf - xi = 0.03 m - (-0.03 m) = 0.06 m
W = 65 N × 0.06 m = 3.9 J
5 0
3 years ago
When you sweat, what is the external stimuli? I need help asap. <br>​
mixer [17]

Answer:

An External Stimulus is a stimulus that comes from outside an organism. Examples: You feel cold so you put on a jacket. When you sweat, the external stimulus is either you're anxious or hot.

Explanation:

hope it helps! <3

8 0
3 years ago
Why can't you feel rhe force of attraction between you and mars
NISA [10]
Because Mars is too far away for its gravitational pull to affect us, in addition Earths gravitational pull is greater than Mars anyways. 
4 0
3 years ago
Which two substances have no fixed shape and no fixed volume?
fenix001 [56]

Answer:

Gas like oxygen, nitrogen etc

4 0
3 years ago
A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. The magne
SVETLANKA909090 [29]

Given Information:  

Resistance of circular loop = R = 0.235 Ω 

Radius of circular loop = r = 0.241 m

Number of turns = n = 10

Voltage = V = 13.1 V

Required Information:  

Magnetic field = B = ?  

Answer:  

Magnetic field = 0.00145 T

Explanation:  

In a circular loop of wire with n number of turns and radius r and carrying a current I induces a magnetic field B

B = μ₀nI/2r

Where μ₀= 4πx10⁻⁷ is the permeability of free space  and current in the loop is given by

I = V/R

I = 13.1/0.235

I = 55.74 A

B = 4πx10⁻⁷*10*55.74/2*0.241

B = 0.00145 T

Therefore, the magnetic field at the center of this circular loop is 0.00145 T

8 0
3 years ago
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