which is the best description of a soil sample with a pH of 4.5?
a. acidic
b. basic
c. inconclusive
d. neutral​

Answer:

36,000j

Explanation:

W= P•t

120•300= 36000

I checked my answer with P= W/t and got the right answer

hope this helps

Answer:

35 degrees

Explanation:

The incident angle, an 80-degree angle, and as the angle of incidence increases, the amount of refraction also increases. So, we can expect a significant change in the angle of refraction from blue to red light at an 80-degree angle of incidence.

Refraction refers to the bending of light when it passes from different mediums.The amount of refraction that occurs at an interface between two materials depends on the wavelength of light, the angle of incidence, and the properties of the materials. The relationship between these factors is described by Snell's law:

n1 sinθ1 = n2 sinθ2

where n1 and n2 are the refractive indices of the two materials, θ1 is the angle of incidence, and θ2 is the angle of refraction.

For a given angle of incidence, the amount of refraction that occurs is greater for shorter wavelengths (i.e., blue light) than for longer wavelengths (i.e., red light). This effect is known as dispersion, and it is why we see rainbows when sunlight is refracted through water droplets.

In the absence of any information about the properties of the materials involved, we can assume that the amount of refraction will increase as the wavelength decreases.

Learn more about refraction, here:

https://brainly.com/question/14760207

#SPJ3

Answer:

true

Explanation:

Answer:

A

Explanation:

since its the tip, you will feel it the most there.

Answer:

the answers the correct one is C

Explanation:

In radioactive decay processes, a very important concept is the half-life time, which is the time it takes for the parent nuclei to decompose into child nuclei.

expressed this mathematically is

              N = N₀ [tex]e^{- \lambda t}[/tex]

for the average life time

              N₀ / 2 = N₀  [tex]e^{- \lambda T_{1/2}[/tex]

               T =[tex]\frac{ln 2x}{ \lambda}[/tex]

Analyzing this expression, the nuclei that decay are the so-called parents and the new nuclei called children appear.

when checking the answers the correct one is C

Answer:

the anser should be d

Explanation:

Answer:

2.82 V

Explanation:

v^2 = 2(12) / 3 is the formula

v^2 = 24 / 3

v^2 = 8, then you square v^2 and 8, to remove the ^2

and you got your answer! I believe this is correct, but let me know if it isn't.

Answer: The periodic table also has a special name for its vertical columns. Each column is called a group. The elements in each group have the same number of electrons in the outer orbital.

Explanation: :)

Answer:

The center of mass is a position defined relative to an object or system of object

Phosphorus is a macro element that is a component of ATP

Answer:

Phosphorus is a macro element that is a component of ATP.

Explanation:

Answer:

The height of the water column = 1.62405[tex]\overline{30}[/tex] × 10⁻¹ m

Explanation:

The air cavity in the Coke bottle = 0.220 m deep

The fundamental (frequency) it plays when water is added to shorten the column and it is blown across the top, f = 528 Hz

The given speed of sound in air, v = 343 m/s

We note that the air cavity in the coke bottle is equivalent to a tube closed at one end

The fundamental frequency for a tube closed at one end, 'f', is given as follows;

f = v/(4·L) = v/λ

Where;

L = The height of the water column

λ = The wavelength of the wave

∴ 4·L = v/f = (343 m/s)/(528 Hz) = 0.6496[tex]\overline{21}[/tex] m

∴ L = 0.6496[tex]\overline{21}[/tex] m/4 = 0.162405[tex]\overline{30}[/tex] m

The height of the water column = 1.62405[tex]\overline{30}[/tex] × 10⁻¹ m.

Answer:

0.058

Explanation:

got it right on acellus

Answer:

Bohr’s

Explanation:

Answer:

A

Explanation:

Answer:

C

Explanation:

pgghikjbvxxasdgjkllpouyrwqscbnnkudyi

Answer:

the kinetic energy decrease is equal to potential energy increase

If the potential energy of pendulum increases then the kinetic energy decreases and if the kinetic energy increases then the potential energy decreases.

According to the work power theorem the total energy of any object will remain constant like the sum of the kinetic and the potential energy of the object will remain constant.

The potential energy of any object is due to its position with respect to the ground. If the object is at a height of H then it will have a potential energy because some energy is given to that object against the gravity to move it to the height H.

The kinetic energy is the energy due to the velocity of the object and is given as the product of half mass to the velocity square.

Now we will express it in the form of the formula for better understanding .

[tex]\rm Total\ energy= KE+PE[/tex]

Now in the pendulum the motion is back and forth with respect to its mean position. So the total energy in the pendulum is the sum of the kinetic energy and the potential energy.

Now if the pendulum attains the maximum displacement from its mean position then it will have maximum potential energy and zero kinetic energy at this point.

Now if the pendulum is at the mean position now it will have maximum kinetic energy and zero potential energy at this point.At this point the potential energy totally converted to the kinetic energy.

Now at the maximum displacement the kinetic energy totally converts into the potential energy of the pendulum.

Thus If the potential energy of pendulum increases then the kinetic energy decreases and if the kinetic energy increases then the potential energy decreases.

To know more about Conservation of energy follow

https://brainly.com/question/14525402

Answer:

Potential basically tells us the ability of an object to do some work. And Potential energy is the amount of energy it acquires due to that Potential difference.

Explanation:

Answer:

Liquid

Explanation:

Before anything evaporates, it is in a liquid state.

Answer: The infra red waves is located between microwave and visible light based on their WAVELENGTH and FREQUENCY of occurrence.

Explanation:

Electromagnetic waves are those waves that do not require or need a material medium for its propagation, but they are able to travel through a vacuum. They exhibit or show all properties associated or connected with light. They are undeflected in electric and magnetic fields. These electromagnetic waves are arranged in order of their FREQUENCY and WAVELENGTHS which is known as ELECTROMAGNETIC SPECTRUM.

FREQUENCY is defined as the number of cycles which the wave completes in one second and is measured in Hertz(Hz). While WAVELENGTH is defined as the distance between two successive crests or troughs of waves which is measured in meter (m).

The electromagnetic spectrum is made up of the following rays which is arranged from the biggest wavelengths to the smallest:

--> Radiowaves

--> microwave :

--> infrared rays:

--> visible light:

--> ultraviolet rays

--> x-rays and

--> Gamma rays.

According to the arrangement of the spectrum above, the microwave has a higher wavelength and frequency than the infrared rays, while the visible light has a lower wavelength and frequency than the infrared rays.

Answer:

a = 4 m/s²

Explanation:

Given: 5000 g, 20N  

To find: Acceleration (a)  

Solution: Firstly, convert 5000g to kilograms

1000g = 1kg

∴ 5000g = 5kg if divided by 1000

A = F ÷ m

=  20 ÷  5  

= 4 m/s²

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

Answer:

C. Both force and displacement

Explanation:

Hope this helps

Answer:

B. 2 litros.

Explanation:

De acuerdo con el enunciado, el gas experimenta un proceso isotérmico y se conserva su masa. Asumiendo que el gas se comporta idealmente, tenemos la siguiente relación entre los estados final e inicial:

[tex]P_{1}\cdot V_{1} = P_{2}\cdot V_{2}[/tex] (1)

Donde:

[tex]P_{1}, P_{2}[/tex] - Presiones inicial y final, medidos en atmósferas.

[tex]V_{1}, V_{2}[/tex] - Volúmenes inicial y final, medidos en litros.

Si sabemos que [tex]P_{1} = 10\,atm[/tex], [tex]P_{2} = 1\,atm[/tex] y [tex]V_{2} = 20\,L[/tex], entonces el volumen inicial del gas es:

[tex]V_{1} = \frac{P_{2}\cdot V_{2}}{P_{1}}[/tex]

[tex]V_{1} = 2\,L[/tex]

Por lo tanto, la respuesta correcta es B.

Answer:

yeah

Explanation:

The information tells you about the rate of decay is that in Florida the reaction occurs more slowly when there is less oxygen in the air.

The reduction in the number of radionuclides per unit time is the rate of decay.

The following table shows that the rate of decay only depends upon the level of oxygen. In Florida concentration of the oxygen in the air is high

Due to this the decay time is less.

The decay time is inversly propotional to the rate of decay. In Florida the rate of decay is high.

Hence the information is that reaction occurs more slowly when there is less oxygen in the air.

To learn more about the rate of decay refer to the link;

https://brainly.com/question/14486631

Answer:

V = 0.87 volt

Explanation:

Given that,

Charge, [tex]q=7.3\times 10^{-17}\ C[/tex]

Electric potential energy, [tex]U=6.4\times 10^{-17}\ J[/tex]

We need to find the value of electric potential at a point. The relation is as follows :

[tex]V=\dfrac{U}{q}[/tex]

Where

V is electric potential

So,

[tex]V=\dfrac{6.4\times 10^{-17}}{7.3\times 10^{-17}}\\\\V=0.87\ V[/tex]

So, the value of the electric potential at a point is equal to 0.87 Volts.

Answer:

acid and bases

Explanation:

Answer:

C. physical model

Explanation:

Sana nakatulong

Answer:

The answer is "2"

Explanation:

I took the test :)