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Neporo4naja [7]
4 years ago
6

Which of the following statements about horizons is true?. a. They are characterized by whether they are solid, liquid, or gas..

b. They are represented by Roman numerals.. c. All soils have completely different horizon patterns.. d. They are defined by their different physical features.
Physics
1 answer:
garik1379 [7]4 years ago
3 0
<span>The answer is d. they are defined by their different physical features. A soil horizon is a layer in a soil profile. Horizons are defined by different physical features such as colour or texture. Other features include, structure and permeability. Each horizon is represented by a letter; A,B,C....</span>
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). with the input voltage range set at +/- 500mv, what is the smallest difference in voltage that can be resolved? show your cal
dalvyx [7]
The smallest difference in voltage that can be resolved is referred to as the resolution. The resolution can be calculated with the following formula:
resolution=voltage range / digital range
The voltage range in our case is from -500mV to 500mV, which gives 1000mV.
The digital range on the other hand is 2^(number of bits).
It depends on what type of bit board we are using. If the ADC we are using is a 16 bit board, then 2^16=<span>65536.
So, the resolution is:
resolution=1000mV/</span><span>65536=0.015 mV</span>
4 0
4 years ago
An 85-kg man plans to tow a 109 000-kg airplane along a runway by pulling horizontally on a cable attached to it. Suppose that h
Lelu [443]

Answer:

The greatest acceleration the man can give the airplane is 0.0059 m/s².

Explanation:

Given that,

Mass of man = 85 kg

Mass of airplane = 109000 kg

Distance = 9.08

Coefficient of static friction = 0.77

We need to calculate the greatest friction force

Using formula of friction

F=\mu mg

Where, m = mass of man

g = acceleration due to gravity

Put the value into the formula

F = 0.77\times85\times9.8

F= 641.41\ N

We need to calculate the acceleration

Using formula of newton's second law

F = ma

a=\dfrac{F}{m}

Put the value into the formula

a=\dfrac{ 641.41}{109000}

a=0.0059\ m/s^2

Hence, The greatest acceleration the man can give the airplane is 0.0059 m/s².

3 0
3 years ago
Help help help help help help help help help
Stells [14]
Yes yes yes yes yes yes yes yes
4 0
3 years ago
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Which of the following chemical equations demonstrates that atoms are conserved during a chemical reaction?
mr_godi [17]

Answer:

2Mg + O2 → 2MgO

Explanation:

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8 0
3 years ago
6. Convert -180° to radians
icang [17]

Answer:

-3.141593

Explanation:

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3 years ago
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