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-they both originate from volcanoes
-and ash comes from solidified lava clashing with rocks
Answer: option c.
Explanation: 3 identical resistors can only have 3 configurations
1) all 3 resistors in series
2) all 3 resistors in parallel
3) 2 parallel resistors in series with 1 resistor.
Case 1 : all 3 resistors in series
Let us assume each of the resistor has resistance value R.
The total resistor (Rt) of 3 resistors in series is given as
Rt = R1 + R2 + R3
Since R1=R2=R3=R
Rt = R+R+R = 3R.
Case 2: all 3 resistors in parallel.
The equivalent resistance of resistors in parallel is given by the formulae below.
1/Rt = 1/R1 + 1/R2 + 1/R3
Since R1=R2=R3=R
1/Rt = 1/R + 1/R + 1/R
1/Rt = 1 +1 +1/ R
1/Rt = 3/R
3 * Rt = R
Rt = R/3
Case 3: 2 parallel resistor in series with one
First is to get the equivalent resistance of the 2 parallel resistor.
1/Rt = 1/R1 + 1/R2
But R1=R2=R
1/Rt = 1/R + 1/R
1/Rt = 1 + 1/R
1/Rt = 2/R
2 *Rt = R
Rt =R/2.
R/2 in series with R has an equivalent resistance as shown below
Rt = R/2 + R
Rt = R + 2R/2
Rt = 3R/2
Since all the possible 3 configuration are listed above and there is no other then option c ( 2R/3) is not possible to achieve
The objects density is greater than one
Answer:
Newton's insight on the inverse-square property of gravitational force was from intuition about the motion of the earth and the moon. The mathematical formula for gravitational force is F=GMmr2 F = G Mm r 2 where G .
Explanation:
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Answer: Pπr2
Explanation: Force is any interaction that affects an object,that if not opposed or treated will cause some changes in the object. Pressure is directly proportional to force,which means an increase in force will create a corresponding increase in the pressure of a system.
The force on the cloth will be The PRESSURE EXERTED ON THE CLOT (P) *THE PI( which is the RATIO of the circumference of the cylinder i.e3.14159) *the square of the ratio. Which is Pπr2.