Two point charges are brought closer together, increasing the force between them by a factor of 25. By what factor was their separation decreased? In other words, if r1 is the original separation and r2 is the final separation, what is the ratio r1/r2?

Answers

Answer 1

Answer:

Answer: 1/5

Explanation: The force between the two charge is inversely proportional to the square distance between charges so as the force increased a factor of 25 the distance can reduced divided by a factor of 5.

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What is the difference between a homogeneous mixture and heterogeneous mixture?

Two or more atoms join together to form a ?

Answers

two atoms of the same element can join together to form a molecule

atoms of two or more elements joined together form compounds.

A series circuit contains a 30 resistor a 20 resistor and a 10 resistor in the power supply provides 100 V to the circuit the current in the tenor sister has two significant figures what is the current

Answers

Answer:

1.7 ohms

Explanation:

edge 2021

Answer:

ans is 30 +20 +10 =60 160

An object will remain at rest or maintain constant, straight-line motion unless acted on by a force that is ___________________.A.inertialB.balancedC.unbalancedD.along a straight lineCan someone explain it somehow for me?.

Answers

c) unbalanced . Because if the forces on an object are not balanced, meaning the sum of them is not '0' the object will accelerate to the direction of their sum.

You can see it in the picture. The forces on the object A are balanced meaning their sum is 0 so it will remain at rest or maintain constant. But object B the forces acting on it are not balanced so it will accelerate to the right.

C.unbalanced
Newton's Law explains that an object continues at constant speed due to the net force acting on the object being zero. When the net force is not zero (unbalanced), then there is a net force and the object will accelerate.

Which best describes how DNA is used as a molecular clock?The number of mutations in DNA is compared between two species.
The total amount of DNA is compared between two species.
The percent of carbon in DNA is compared between parent and offspring.< The total mass of DNA is compared between parent and offspring.

Answers

The answer that best describes how DNA is used as a molecular clock is the number of mutations in DNA is compared between two species.

Answer:

The correct answer is a = The number of mutations in DNA is compared between two species.

Explanation:

Hello ! Let's solve this!

The molecular clock is a technique to see the divergence between two species. In other words, to see DNA mutations.

The correct answer is a = The number of mutations in DNA is compared between two species.

A crane raises a 150 N weight to a height of 2.0 m in in 5.0 s. The crane does work at a rate of

Answers

The work done is (force) x (distance) = (150N) x (2m) = 300 joules.

The crane does the work at the rate of (300 J) / (5 sec) = 60 joules per second.

That rate ... (work done) / (time to do the work) ... is called power.

That 60 joules per second is called 60 watts .

Answer:

60. W

Explanation:

60 Watts

Срочно нужно решение задания 5, пожалуйста!!!!!

Answers

I don’t understand this let me try I will try my best

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