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frez [133]
4 years ago
13

What did early experiments and Coulomb’s Law describe? Select all that apply.

Physics
2 answers:
Luda [366]4 years ago
4 0
<span>Like charges repel and opposite charges attract.
The further away two charged objects are the weaker the electrical force between them.
The closer two charged objects are the stronger the electrical force between them.
Hope this helps :)</span>
Varvara68 [4.7K]4 years ago
4 0

Answer:

Option (2), (4), (6)

Explanation:

According to the properties of charges, two like charges repel each other and two unlike charges attract each other.

If two positive or two negative charges kept at a distance, then they repel each other.

If one positive and one negative charges kept at a distance, they always attract each other.

Now according to the Coulomb's law, the force between the two charges, is directly proportional to the product of two charges and inversely proportional to the square of distance between them.

So, farther the two charges, weaker is the force.

And closer the two charges, stronger is the force.

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the strength s of a rectangular wooden beam is proportional to its width and the cube of is septh. If the beam is to be cut from
babymother [125]

Answer:

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Explanation:

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4 0
3 years ago
A former student of mechanics wishes to weigh himself but has access only to a scale a with capacity limited to 120 lbs and a sm
Galina-37 [17]

Answer:

The answer to the question is

The correct weight of the former student = 116 lbf

Explanation:

To solve the question, we list out the known variables as follows

Capacity of the scale = 120 lbs

Capacity of the spring dynamometer = 20 lbs

Reading on the scale = 100lb

Reading on the spring dynamometer= 16 lb

at equilibrium, sum of forces = 0

Therefore weight of former student = reaction forces of the scale + the reaction force of the spring dynamometer = 100lb + 16 lb = 116 lb

The correct weight = 116lb weight or 52.62 kg

Converting to weight which is a force = mass * acceleration = 52.62 kg * 9.81 m/s² =

516.2 N = 116 lbf

3 0
3 years ago
What interests you the most about Social Psychology? What do you think is one of the most aggravating issues that our society fa
puteri [66]
That the field studys the social context in relationships, society, family, school, etc. The way we form relationships, how society affects the relationships we decide to form, how much society influences our decisions, jobs, education( more than we can imagine.)
I believe the most aggravating issue is the police bruality. The fact that the men who are suppose to be heroes, save lives through enforcing the laws, and give protection to the citizens, are instead acting as criminals themselves killing and creating a sense of danger is inexcusable and a solution needs to be made .
6 0
4 years ago
A bag of sugar weighs 3.50 lb on Earth. What would it weigh in newtons on the Moon, where the free-fall acceleration isone-sixth
Alex73 [517]

Answer:

F_{Earth}= 15.57 N

F_{Moon}= 2.60 N

F_{Uranus}= 16.98 N

The mass of the bag is the same on the three planets. m=1.59 kg

Explanation:

The weight of the sugar bag on Earth is:

g=9.81 m/s²

m=3.50 lb=1.59 kg

F_{Earth}=m·g=1.59 kg×9.81 m/s²= 15.57 N

The weight of the sugar bag on the Moon is:

g=9.81 m/s²÷6= 1.635 m/s²

F_{Moon}=m·g=1.59 kg× 1.635 m/s²= 2.60 N

The weight of the sugar bag on the Uranus is:

g=9.81 m/s²×1.09=10.69 m/s²

F_{Uranus}=m·g=1.59 kg×10.69 m/s²= 16.98 N

The mass of the bag is the same on the three planets. m=1.59 kg

5 0
3 years ago
Calculate the speed for a car that went a distance of 254 km in 4 hours
quester [9]

Answer:

speed = 63.5 km/hr

Explanation:

let me know if that works

5 0
3 years ago
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