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ehidna [41]
3 years ago
13

What is the significance of the fact that the gravitational constant, G, is a very small number and that Coulomb’s constant, k,

is a very large number?
Physics
2 answers:
Lunna [17]3 years ago
6 0
<span>The comparison indicates that the gravitational force is a much weaker force than the electromagnetic force. </span>
valina [46]3 years ago
5 0
Both are constants used in the definition of Forces (gravitational and electric,respectively)

Since those constants are proportional to the magnitude of the forces:

Having a small gravitational constant explains why there is no apparent force of attraction with objects of considerable low mass (they would need to have great value of mass for the equation to give an apreciable force)

Electrical interactions are usually strong, and thus require an appropiate constant to depict the phenomenon. We deal in this case with charges really small, but the forces are in different order of magnitude.
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damaskus [11]

Answer:

8 colors in alphabetical order are

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blue

brown

Green

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Explanation:

6 0
2 years ago
A cyclical heat engine, operating between temperatures of 450º C and 150º C produces 4.00 MJ of work on a heat transfer of 5.00
gogolik [260]

Answer:

(a) Heat transfer to the environment is: 1 MJ and (b) The efficiency of the engine is: 41.5%

Explanation:

Using the formula that relate heat and work from the thermodynamic theory as:W=Q=Q_{in}-Q_{out} solving to Q_out we get:Q_{out}=Q_{in}-W=5(MJ)-4(MJ)=1(MJ) this is the heat out of the cycle or engine, so it will be heat transfer to the environment. The thermal efficiency of a Carnot cycle gives us: n=1-\frac{T_{Low} }{T_{High}} where T_Low is the lowest cycle temperature and T_High the highest, we need to remember that a Carnot cycle depends only on the absolute temperatures, if you remember the convertion of K=°C+273.15 so T_Low=150+273.15=423.15 K and T_High=450+273.15=723.15K and replacing the values in the equation we get:n=1-\frac{423.15}{723.15} =0.415=41.5%

5 0
3 years ago
What is the weight of a person who has a mass of 76 kg?​
liq [111]

Answer:

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5 0
3 years ago
With the piston head locked in place, will the volume of the gas increase, decrease, or stay the same whenthe piston is placed a
Nuetrik [128]

Answer:

For real gas the volume of a given mass of gas will increase with increase in temperature.

Explanation:

With the piston head locked in place and place above the fire,the volume of the gas will increase,because the volume of a given mass of gas increases with increase temperature.

6 0
3 years ago
A water wave has a speed of 22.0 meters/second if the wave frequency is 0.0680 hertz what is the wavelength
serg [7]
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22.0 = 0.0680 (wavelength)
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8 0
3 years ago
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