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Klio2033 [76]
3 years ago
9

A 6.89-nC charge is located 1.76 m from a 4.10-nC point charge. (a) Find the magnitude of the electrostatic force that one charg

e exerts on the other. (b) Is the force attractive or repulsive?
Physics
1 answer:
iogann1982 [59]3 years ago
5 0

Answer: a) 8.2 * 10^-8 N or 82 nN and b) is repulsive

Explanation: To solve this problem we have to use the Coulomb force for two point charged, it is given by:

F=\frac{k*q1*q2}{d^{2}}

Replacing the dat we obtain F=82 nN.

The force is repulsive because the points charged have the same sign.

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An unusual lightning strike has a vertical portion with a current of –400 A downwards. The Earth’s magnetic field at that locati
marusya05 [52]

Answer:

The magnetic force is 0.3 N.        

Explanation:

Given that,

Current in an unusual lightning strike, I = -400 A

The Earth’s magnetic field at that location is parallel to the ground and has a magnitude of 30 μT, B=30\times 10^{-6}\ T

We need to find the force exerted by the Earth’s magnetic field on the 25 m-long current.

The magnetic force is given by :

F=ILB\\\\F=400\times 25\times 30\times 10^{-6}\\\\F=0.3\ N

So, the magnetic force is 0.3 N.

8 0
3 years ago
A car advertisement claims their car can go from a stopped position to moving 60 miles per hour in 5 seconds. The advertisement
swat32
I do not understand what your saying could u plz be more specific?
8 0
3 years ago
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Temperature is referred to as what Under the metric system
ss7ja [257]

Hello


The word for Tepertaure is Celsius in the Metric System


Hope this helps

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4 0
3 years ago
The difference between relational and reactive aggression is that relational aggression is ______, whereas reactive aggression i
givi [52]

Answer:

Social, physical behavior

Explanation:

The relational aggression is the aggression which caused or give to person by doing harm to his or her relationship or social image.

Reactive aggression is the aggression which is caused by threatening someone, or caused by provocation, or caused due to frustration.

Therefore, the basic  differentiation in  between both the aggression is that relational aggression is caused by by damaging social status whereas reactive aggression is caused through physical behavior.

8 0
3 years ago
The logarithm of x, written log(x), tells you the power to which you would raise 10 to get x. So, if y=log(x), then x=10^y. It i
fomenos

To solve this problem it is necessary to apply the rules and concepts related to logarithmic operations.

From the definition of logarithm we know that,

Log_{10}(10) = 1

In this way for the given example we have that a logarithm with base 10 expressed in the problem can be represented as,

log_{10}(1,000,000)

We can express this also as,

log_{10}(10^6)

By properties of the logarithms we know that the logarithm of a power of a number is equal to the product between the exponent of the power and the logarithm of the number.

So this can be expressed as

6*log_{10}(10)

Since the definition of the base logarithm 10 of 10 is equal to 1 then

6*1=6

The value of the given logarithm is equal to 6

8 0
4 years ago
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