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Advocard [28]
4 years ago
11

If the masses of objects increase and their distance from each other remains the same, then the force of gravity between the two

objects
A) decreases.
B) increases.
C) remains the same.
D) increases then decreases.
Physics
2 answers:
solniwko [45]4 years ago
8 0

Answer:

The answer is B. Increases.

Explanation:

The force of gravity expressed in a formula is equal to F = G\frac{m1m2}{d^{2} }

In which:

(F) equals the force of attraction

(G) is equal to the universal gravitation constant

(M1) represents the mass of body number 1

(M2) represents the mass of body number 2

(D) represents the distance between the two bodies

So as the masses are in the numerator, if they are increased the fraction in the same way will increase. For this reason if the masses of these bodies increases the force of gravity will also increase.

jonny [76]4 years ago
5 0
B. Increases coz Gravitational force is directly proportional to product of their masses. i. e if m increases, gravitational force increases.
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myrzilka [38]

Answer:

p = 8N/mm2

Explanation:

given data ;

diameter of cylinder =  150 mm

thickness of cylinder = 6 mm

maximum shear stress =  25 MPa

we know that

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axial stress is given as =\frac{pd}{4t}

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putting both stress value to get required pressure

25 = \frac{ \frac{pd}{2t} -\frac{pd}{4t}}{2}

25 = \frac{pd}{8t}

t = 6 mm

d = 150 mm

therefore we have pressure

p = 8N/mm2

7 0
4 years ago
A train travels 250 km westward from Carthage to Johnson City. The train arrives 2.5 hours after it left. What was the average v
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The answer is C 100 km/h west
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4 years ago
Light emitting diode (LEDs) light bulbs have become required in recent years, but do they make financial sense? Suppose a typica
kogti [31]

Answer:

The break even cost is $0.0063825

Explanation:

Break-even cost is the amount of money, or change in value, which equates to the amount at which an asset must be sold to equal the cost of acquiring it. For easier understanding it can be thought the amount of money for which a product or service must be sold to cover the costs of manufacturing or providing it.

Wattage = W

Cost per kilo watt hour = C

Number of hours per year = H

Price per bulb/CFL = P

Discount rate = 11%

Life of bulb = 2 years

Price of bulb = $0.39

Wattage consumption of bulb per hours = 60

Life of CFL = 24 years

Price of CFL = $3.10

Wattage consumption of CFL per hour = 15

Calculate the Equated Annual Cost (EAC) of bulb

EAC = {- P - (W/1000 x H x C) x (PVIFA 11%, 2years)}/ (PVIFA 11%, 2years)

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PVIFA 11%, 2 years = [1 – {(1 + 0.11)^(-2)}]/0.11 = 1.712523 (for 2 years)

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<u>Calculate the EAC of bulb</u>

EAC = {- P - (W/1000 x H x C) x (PVIFA 11%, 2 years)}/ (PVIFA 11%, 2 years)

EAC = {- 0.39 - (60/1000 x H x C) x (1.712523)}/ (1.712523)

EAC = {-0.39 – (51.37570 x C)}/ 1.712523, <em>consider this equation 1</em>

<u>Calculate the EAC of CFL</u>

EAC = {- P - (W/1000 x H x C) x (PVIFA 11%, 24 years)}/ (PVIFA 11%, 24 years)

EAC = {- 3.10 - (15/1000 x 500 x C) x (8.348136)}/ (8.348136)

EAC = {-3.10 – (62.61102 x C)}/8.348137, <em>consider this equation 2</em>

<u>Equate 1 and 2 to find the amount of C</u>

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{-0.39 – (51.37570 x C) x 8.348137} = {-3.10 – (62.61102 x C) x 1.712523}

C = $0.0063825

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3 0
3 years ago
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maw [93]

Answer:

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Hope this helps!
6 0
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