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ehidna [41]
4 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]4 years ago
6 0
<span>The comparison indicates that the gravitational force is a much weaker force than the electromagnetic force. </span>
valina [46]4 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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100m so you will subtract 100m from 200m. and you will get your answer 200m-100m=100m
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3 years ago
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A steel beam that is 6.50 m long weighs 336 N. It rests on two supports, 3.00 m apart, with equal amounts of the beam extending
FinnZ [79.3K]

Answer:

Explanation:

When beam is balanced and not rotating with Suki standing on it , let reaction force on the supports be R₁ and R₂. Then

R₁ +R₂ = 336 + 590

= 929

Now the moment beam begins to tip , reaction on distant support R₁ = 0

only R₂ will exists on the support near to Suki.

Taking torque about this support of weight of beam acting from the middle point and weight of suki of 590N ,who is x distance from the support towards the other end.

336 x 1.5 = 590 x

x = .85 m

ie , from second support , Suki can not go beyond a distance of .85 m towards the second end.

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3 years ago
Explain one way the water cycle affects climate. Use complete sentences.
Reika [66]
When water vaporizes into the air, it becomes humid out.
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Standing on top of a building, Bob tosses a baseball straight up with an initial speed of 15 m/s. It takes 4.0 s for the ball to
r-ruslan [8.4K]

Answer:

48.26 m

Explanation:

time to goes up (till stop for a while in the air - maximum height)

vt = vo + a t

0 = 15 + g . t

0 = 15 + (-9.8) . t

9.8t = 15

t = 1.531 s

so the time left to goes down is

4.0 - 1.531 = 2.469 s

height from the top of building can find it by using

vo =√(2gh)

15 = √(2)(9.8).h

15² = 19.6h

h = 225/19.6 = 11.48 m

so the distance of maximum height to the ground is

t = √(2H/g)

2.469 = √(2H/9.8)

2.469² = 2H/9.8

6.096 = 2H/9.8

2H = 6.096 x 9.8 = 59.74 m

so the vertical distance of the building (or the building height's is)

H - h = 59.74 - 11.48 = 48.26 m

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3 years ago
Which of the following statements about communication is most accurate?
jarptica [38.1K]

The statements about communication that is most accurate is:

A. Most body language is related to emotions and attitudes

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We communicate with rather more than words: once we act with somebody, our body features a language of its own. The approach we have a tendency to sit, the gestures we have a tendency to create, the approach we have a tendency to speak, what quantity eye contact we have a tendency to create all of these are non-verbal ways that of act that impact the messages our words are causing.

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