Two charges separated by a distance r₁ exert an electrostatic force of magnitude F₁ on each other. When their separation is changed to r2, the new force is F2 = BF₁ where ß = 0.781. What is the ratio r2/r₁?

Q: Calculate (1.99 x 10³0)/(5.98 x 1024). Express your answer to three significant figures.

A: We have been given two values, let us say that a = 1.99×1030b = 5.98×1024

Q: An English ruler is 12 inches long. The length of an English ruler measured in metric units is 30.48…

A: Length of English ruler = 12 inches Length of ruler in metric units = 30.48 cm

Q: Significant figures are determined by the number of digits in a measurement that are reliably known.…

A: Significant figures

Q: How long would it take a car traveling 4.2 m/s to go a distance of 28.4 meters?  Round your answer…

A: Given data-         speed of car ( u ) = 4.2 m/s        distance travelled ( d ) = 28.4 m…

Q: One micrometer means  1/ 10 _6 of a meter 1/103  of a meter 1/10+ 6 of a meter No answer text…

A: Required: 1 micrometer in terms of meter

Q: What is the definition of the word Magnitude?

A: What is the definition of the word Magnitude?

Q: What is the height in meters of a 3 foot 3.0 inch tall person ?

A: Given:-  The height of the person is h = 3 foot 3.0 inch  Find:-  The height in the meter?

Q: how is 0.992 the radius?

A: The radius value is already mentioned in the question.

Q: In the figure shown below the ratio "sin 03/sin 0," 03 02

A:

Q: Use the rules for significant figures to find the answer to the addition problem  S = 19.4 + 17 +…

A: Given data:  S = 19.4 + 17 + 11.67 + 5.703 Required: Using significant figures rules to find the…

Q: By what factor would a numerical quantity change if measured in millimeters rather than kilometers?

A: According to question we need to find--- By what factor would a numerical quantity change if…

Q: What is meant by an explicit constant definition of a unit?

A: In order to verify that the physical equations are valid, we employ a set of fundamental invariant…

Q: Convert 21 m/s to km/hr.

A: Given data:  21 m/s Required: The value of 21 m/s in km/hr

Q: Using some or all of the conversion factors, convert the following:  Convert 3.67 x 103 yards to…

A:

Q: The number of seconds in 1 week when expressed in scientific notation rounded to the nearest tenths

A: We know that, 1 week = 7 days And 1 day = 86400 seconds

Q: 5.6 hours = ________ seconds

A:

Q: Express your answer to three significant figures. Calculate (1.90 x 10^27) / (5.98  x 10^24)

A: Given data:   (1.90 x 1027) / (5.98 x 1024) Required: The value in three significant figures

Q: Assuming that the following numbers are written with the correct number of significant figures, make…

A: the number of significant figures in the final result of an calculation is equal to the least number…

Q: Round the following to the number of significant figures listed in (parenthesis): 525 (2) O 52 525…

A: Arcane rounding Rule:-According to the arcane rounding rule if the number ends in a perfect 5 you…

Q: The mass of a feather is 8.2 x 10-3 grams. Write the mass in decimal notation

A: Given  mass=8.2×10-3 gram

Q: How to measure the seconds?

A: Historically, definition of second was based on the division of the Earth’s rotation cycle. Second…

Q: Which of these is the fundamental unit of mass, m?     pound, lb     slug, sl     stone, st…

A: Solution

Q: what formula is this "E= 33000×20×50 = 33000000 ft- lb. (1)"

A: This statement is nothing but the unit conversion of energy.

Q: A liter of water water weighs about 8.48 N. Compute its mass in kg.   Round your answer to 3…

A: We are given weight of water. This weight is of 1 liter water. We find the mass of water. The…

Q: suppose a person is 6 ft 7 inch tall what is their height in meters

A: 1ft = 0.305 m1 inche = 0.0254 m

Q: Question 5 What is the reading of the following Micrometer (in mm)? 444 07.84+0.005 05.34+0.005…

A: Least count of micrometer = 0.01 mm. Linear scale reading = 7 mm. Circular scale reading= 34

Q: 122 km/hr = mile/hr

A:

Q: Can length be measured in inches with a micrometer?

A:

Q: The mass of an ear ring is 950 mg. Express this mass in Sl unit. (a) 9.50 x 10-6 kg (b) 9.50 x 104…

A:

Q: Convert the following to standard notation: 9.8 x 104

A: Standard notation is a form of presenting very small numbers in the form of a very large number.

Q: How many significant figures has the number 1086.035.

A: Question: How many significant figures has the number 1086.035

Q: N N = ? 3 -1.4 x 10 cm mm z||

A:

Q: what is the reading in the micrometer ?

A: Least count of micrometer : Least count of micrometer=smallest reading of main scaleTotal number of…

Q: How far does a car going 17m/s travel in 15.7 min. Give answer in meters.  Calculate answer to one…

A: Let s denote the total distance travelled by the car. Let v denote its constant speed, and let t…

Q: digit(s) after the decimal point. When 15.9 is added to 99.6, the result should be reported with…

A: The problem ks based on tbe concept of significant figues and basic concept of rounding off. The…

Q: Convert 42,960 m/s to mi/s. 1 mile is 1.609 km. Round to 1 decimal place.

A: Given data:  Speed (v) = 42,960 m/s 1 mile = 1.609 km Required: Speed in mi/s

Q: How many significant figures are in the following number: 2.5x10(power of 2)

A: Given data:  A number 2.5×102 Required: The number of significant figures

Q: Vesna Vulovic survived the longest fall on record without a parachute when her plane exploded and…

A:

Q: How many minutes are in a week?

A: 1 week = 7 days or 1 week = 7 x 24 hours or 1 week = 7 x 24 x 60 minutes  or 1 week = 10080 minutes

Q: Is the only standard unit in the metric system that has a prefix. what does this prefix means?.

A: Yes. A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple…