19.02.2023


Please check this with me are the questions from 3 to 5 answered correctly?

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19.04.2023, solved by verified expert
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Answer:

Answer given below.

Step-by-step explanation:

3. 

Given that :

Depreciation in the first year = $5,199

Depreciation in the second year = $4,159

Depreciation in the third year = $3,328

So, 

Total depreciation = $(5,199 + 4,159 + 3,328)

= $12,686

4. 

New Value after depreciation = $(25,998 - 12,686) 

= $13,312

5.

Percent depreciation = ($12,686/$25,998) × 100%

= 48.8%

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Physics
Step-by-step answer
P Answered by PhD

(a) 4.40\cdot 10^{20}N

The distance between the Sun and the Earth is

d_{SE}=1.496 \cdot 10^11 m

The distance between the Earth and the Moon is

d_{EM} = 3.84\cdot 10^8 m

So, the distance between the Sun and the Moon, when the Moon is between the Earth and the Sun, is

d_SM = 1.496\cdot 10^{11}m -3.84\cdot 10^8 m=1.492\cdot 10^{11} m

So the gravitational force between the Sun and the Moon is

F_{SM} = G \frac{M_S M_M}{d_{SM}^2}

where

G is the gravitational constant

M_S = 1.988 \cdot 10^{30}kg is the mass of the Sun

M_M = 7.384\cdot 10^{22}kg is the mass of the Moon

d_{SM}=1.492\cdot 10^{11} m is their distance

Substituting,

F_{SM} = (6.67\cdot 10^{-11}) \frac{(1.988\cdot 10^{30} kg)(7.384\cdot 10^{22}kg)}{(1.492\cdot 10^{11} m)^2}=4.40\cdot 10^{20}N

(b) 2.00\cdot 10^{20}N

The gravitational force between the Earth and the Moon is

F_{EM} = G \frac{M_E M_M}{d_{EM}^2}

where

G is the gravitational constant

M_E = 5.972 \cdot 10^{24}kg is the mass of the Earth

M_M = 7.384\cdot 10^{22}kg is the mass of the Moon

d_{EM}=3.84\cdot 10^{8} m is their distance

Substituting,

F_{EM} = (6.67\cdot 10^{-11}) \frac{(5.972\cdot 10^{24} kg)(7.384\cdot 10^{22}kg)}{(3.84 \cdot 10^{8} m)^2}=2.00\cdot 10^{20}N

(c) 3.54\cdot 10^{22}N

The gravitational force between the Earth and the Sun is

F_{ES} = G \frac{M_E M_S}{d_{ES}^2}

where

G is the gravitational constant

M_E = 5.972 \cdot 10^{24}kg is the mass of the Earth

M_S = 1.988 \cdot 10^{30}kg is the mass of the Sun

d_{SE}=1.496 \cdot 10^{11} m is their distance

Substituting,

F_{ES} = (6.67\cdot 10^{-11}) \frac{(5.972\cdot 10^{24} kg)(1.988\cdot 10^{30}kg)}{(1.496 \cdot 10^{11} m)^2}=3.54\cdot 10^{22}N

Physics
Step-by-step answer
P Answered by PhD

(a) 4.40\cdot 10^{20}N

The distance between the Sun and the Earth is

d_{SE}=1.496 \cdot 10^11 m

The distance between the Earth and the Moon is

d_{EM} = 3.84\cdot 10^8 m

So, the distance between the Sun and the Moon, when the Moon is between the Earth and the Sun, is

d_SM = 1.496\cdot 10^{11}m -3.84\cdot 10^8 m=1.492\cdot 10^{11} m

So the gravitational force between the Sun and the Moon is

F_{SM} = G \frac{M_S M_M}{d_{SM}^2}

where

G is the gravitational constant

M_S = 1.988 \cdot 10^{30}kg is the mass of the Sun

M_M = 7.384\cdot 10^{22}kg is the mass of the Moon

d_{SM}=1.492\cdot 10^{11} m is their distance

Substituting,

F_{SM} = (6.67\cdot 10^{-11}) \frac{(1.988\cdot 10^{30} kg)(7.384\cdot 10^{22}kg)}{(1.492\cdot 10^{11} m)^2}=4.40\cdot 10^{20}N

(b) 2.00\cdot 10^{20}N

The gravitational force between the Earth and the Moon is

F_{EM} = G \frac{M_E M_M}{d_{EM}^2}

where

G is the gravitational constant

M_E = 5.972 \cdot 10^{24}kg is the mass of the Earth

M_M = 7.384\cdot 10^{22}kg is the mass of the Moon

d_{EM}=3.84\cdot 10^{8} m is their distance

Substituting,

F_{EM} = (6.67\cdot 10^{-11}) \frac{(5.972\cdot 10^{24} kg)(7.384\cdot 10^{22}kg)}{(3.84 \cdot 10^{8} m)^2}=2.00\cdot 10^{20}N

(c) 3.54\cdot 10^{22}N

The gravitational force between the Earth and the Sun is

F_{ES} = G \frac{M_E M_S}{d_{ES}^2}

where

G is the gravitational constant

M_E = 5.972 \cdot 10^{24}kg is the mass of the Earth

M_S = 1.988 \cdot 10^{30}kg is the mass of the Sun

d_{SE}=1.496 \cdot 10^{11} m is their distance

Substituting,

F_{ES} = (6.67\cdot 10^{-11}) \frac{(5.972\cdot 10^{24} kg)(1.988\cdot 10^{30}kg)}{(1.496 \cdot 10^{11} m)^2}=3.54\cdot 10^{22}N

Biology
Step-by-step answer
P Answered by PhD

1. 4.5 hour

The equation for time needed to prepare the diner is H/6 + H/18 = 1


To solve this question, you have to equalize the denominator of the equation. The greatest common multiple of 6 and 18 is 18, so you have to change the denominator to 18. The calculation would be:

H/6 + H/18 = 1


H/6 * 3/3 + H/18 = 1


3H/18 + H/18 = 1


4H/18 = 1


H= 18/4= 4.5


2. 9.2 grams


Halley measured samples of a metallic substance for an experiment on density with equipment that has lowest unit 1/10 gram or 0.1 gram. The equipment should not be able to differentiate unit lower than 0.1 gram, so it is not possible to have result such as 9.24 grams. or 9.244 grams.  

3. To find the formula to find length of a rectangle from its perimeter you need to move the length(l) into the left of the equation. The calculation would be:

p = 2L + 2w

p-2w=2L

2L= p-2w

L=1/2p -w


The equation of I is right, but the equation of II and III is not.

I. L= 1/2p - w  > right

II. L=(p - 2w)  ---> wrong, should be 2L=(p - 2w)  

III. L= P-2w / 2---> wrong, should be L= (P-2w)/ 2

Biology
Step-by-step answer
P Answered by PhD

1. 4.5 hour

The equation for time needed to prepare the diner is H/6 + H/18 = 1


To solve this question, you have to equalize the denominator of the equation. The greatest common multiple of 6 and 18 is 18, so you have to change the denominator to 18. The calculation would be:

H/6 + H/18 = 1


H/6 * 3/3 + H/18 = 1


3H/18 + H/18 = 1


4H/18 = 1


H= 18/4= 4.5


2. 9.2 grams


Halley measured samples of a metallic substance for an experiment on density with equipment that has lowest unit 1/10 gram or 0.1 gram. The equipment should not be able to differentiate unit lower than 0.1 gram, so it is not possible to have result such as 9.24 grams. or 9.244 grams.  

3. To find the formula to find length of a rectangle from its perimeter you need to move the length(l) into the left of the equation. The calculation would be:

p = 2L + 2w

p-2w=2L

2L= p-2w

L=1/2p -w


The equation of I is right, but the equation of II and III is not.

I. L= 1/2p - w  > right

II. L=(p - 2w)  ---> wrong, should be 2L=(p - 2w)  

III. L= P-2w / 2---> wrong, should be L= (P-2w)/ 2

Mathematics
Step-by-step answer
P Answered by Specialist

A, B, and E are correct.

Step-by-step explanation: The average/mean of all numbers is 27 (sum) divided by 9. The number in the exact middle when the data set is in chronological order is 2. The mode, or number in the data set which occurs most frequently, is 1. Hope this helps!!

Social Studies
Step-by-step answer
P Answered by PhD

c. checking credentials and licensure requirements.

Explanation:

A selection interview does not generally focus on checking credentials and licensure requirements. Instead, these are examined when first reviewing a candidate's information. However, the rest of the options do describe steps in a selection interview. A selection interview discusses the job-related knowledge that a person has. It also tests the subject's problem-solving skills and interpersonal skills.

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