A typical oil molecule has an effective diameter of 0.25 nm. If 25 L (1 L is the same as 1000 cm3) of oil is spilled on a lake, and if the oil is spread so that it is only a single molecule thick, what will be the approximate area of the oil slick? Assume that the oil molecules are just touching.

Q: one meter is 100 cm. Does it therefore follow that one cubic meter is 100 cubic centimeters? explain…

A: As we know, 1 meter is equivalent to 100 cm, So one cubic meter is equivalent to, 1 m3=100 cm3=106…

Q: How many seconds are there in 2.00 year ? b) how many nanoseconds are there in 2.00 year? c) what is…

A: Given: Time = 2 years

Q: The perimeter of a rectangular solar panel is 260.0 cm. The ratio of the length to the width is 5 to…

A:

Q: With a wooden ruler, you measure the length of a rectangular piece of sheet metal to be 16 mm. With…

A: Answer: (A) 143.68 mm2 (B) 0.5612 (C) 49.96 mm (D)7.02 mm (E)1.7817 mm Explaination: Given length of…

Q: A 1938 nickel has a diameter of 21.21 mm, a thickness of 1.95 mm, and weighs 0.04905 N. What is its…

A: We know, density=MassVolume

Q: What is the greatest distance on the surface of the earth that can be seen from the top of Mayon…

A:

Q: If the radius of a CD-ROM is 6 cm, what is the average area taken up by each bit if the total number…

A: The radius of a CD ROM is, The total area of a CD ROM can be given as, The total number of nits…

Q: A house is advertised as having 1420 square feet under its roof. What is its arėa in square meters?…

A: Given Area is given as A=1420 ft2   We have to find the area in square meters.

Q: 1) Which of the following equations are dimensionally correct? A) vf = vi + ax B) y = (2m) cos(kx),…

A:

Q: In one of the labs, a student found the length and width of a rectangular wooden board. The recorded…

A:

Q: A plot of land contains 5.2 acres. How many square meters does it contain? [1 acre = 43,560 ft2.] a)…

A: Given plot area = A = 5.2 acres we have to calculate 'plot area in square meters'

Q: The diameter of the spherical particle is (1.900x10^O) fm, and the mass is (2.51x10^-27) kg.…

A: Formula of density is as follow; ρ=mV…

Q: The area of a small rectangle is 418 mm-. Express this area in the S.I. unit. O a. 0.000418 square…

A:

Q: Q8: One gallon of paint (volume = 3.78 x 10° cm³) covers an area of 25.0 m². What is the thickness…

A: Volume is equal to the area times thickness. Therefore, Volume=Area×ThicknessV=A×t

Q: One cubic meter of a cumulus contains 6.00x108 water drops, which have a radius of 1.10 x10 m. How…

A: Given data : radius of cylindrical cumulus cloud, R = 3 × 103 m = 3000 m                     height…

Q: One cubic centimeter of a typical cumulus cloud contains 50 to 500 water drops, which have a typical…

A:

Q: 1.55 * An Earthlike Planet. In January 2006 astronomers reported the discovery of a planet…

A: Given : m = 5.5 mE = 5.5(5.97 x 1024) = 3.28 x 1025 kg ρ = 1.76 g/cm3 = 1760 kg/m3

Q: One liter of oil is spilled onto a smooth lake. If the oil spreads out uniformly until it makes an…

A: The given values are,

Q: A circle has a diameter of 3.102 × 10-2 m. What is the area of the circle in cm2 (A = πr2, where "r"…

A: d=3.102*10-2 m=3.102 cm r=d/2=1.551 cm

Q: Computer chips are etched on circular silicon wafers of thickness 0.60 mm that are sliced from a…

A:

Q: Given that there are 2.54 cm in one inch, how many inches are in 100 meters?

A:

Q: The area of a sheet of paper is 900 cm2. Express this area in the S.I. system O a. 0.09 m2 O b. 9 m2…

A: Given, Area of a sheet paper A = 900 cm2

Q: 25 0 cm-tall fish tank has a length and width of 40 0 cm x 20 0 cm respectively If 1000 cm3 of water…

A:

Q: How many years will it take to occupy the computer's hard drive that can store data of 82 gigabytes…

A: Solution: Given the amount of data = 82 gigabytes = 82x109 bytes. Also given, 1 byte = 1 character.…

Q: Your height is 1.5m and you look towards a pool that looks like 1.3m deep. Will you be able to stand…

A: Given:height, h=1.5 mapparent depth of pool, happ= 1.3 refractive index, nwater = 1.33

Q: A rectangular box is h = 15 inches in high, w = 26.5 cm wide, and L = 0.15 yards long. v=

A:

Q: If a flower is 6.5 cm wide, its width expressed in millimeters is x mm, where x is

A: Width of the flower in cm is 6.5 cm 1 cm =0.1 mm 6.5 cm=6.5 0.1 mm6.5 cm=0.65 mm

Q: Q7: The JCR of a student hostel is 50.0 ft long and 26 ft wide and has 8.0-ft high ceilings. What is…

A:

Q: The radius of sphere 2 is triple the radius of sphere 1. What is the ratio of the areas, A2/A1?

A: Let us use subscript 1 for smaller sphere and subscript 2 for largersphere .Then , according to…

Q: 8. Convert 125 miles/h to km/s Ihr f6o sec 125 mil hours =0.0558 8 S. A S5.9g object that occupies…

A:

Q: A Texas rancher wants to fence off his four-sided plot of flat land. He measures the first three…

A:

Q: A circular hole of radius 8.467  10-1 cm must be cut into the front panel of a display unit. The…

A: Given:Radius of the circular hole = 0.8467 cmMaximum variation = 0.002 cmSince the actual hole is…

Q: Volume where 1- p2 S.N.. side length (1) surface area (3) 1 1.5cm 135 cm 6 cm 1.5 cm ✓ 1 cm 05 cm…

A: Solution:-

Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 μm and…

A:

Q: A farmer wants to fence off his four-sided plot of flat land.He measures the first three sides,…

A: Equate horizontal component of the resultant vector to zero

Q: Consider the physical quantities f, g, h, i and j with dimensions: [S] = M² [g] = [h] = MLT-2 [i] =…

A: Given: f=M2g=ML-3h=MLT-2i=L-3j=L2T2 Now, to find a dimensionless quantity, we need to find:…

Q: A contractor has to build rectangular pool 12 meters long and 8 meters wide. The pool must, by…

A: Consider the illustration of the pool described as shown below:     Here, l and b denote the pool’s…

Q: 1. Find the percent uncertainty of 300±5 cm. How will you write the value of the measurement? 2

A: As per guidelines  only first question is answered here , as all questions are not a subpart of a…

Q: A person walks 4 m to the park, then he walks 8200 km in the park then he returns back to home after…

A: Write the given values with suitable variables. d1=4 md2=8200 km=8200×103 md3=720 cm=7.2 m Here, d1…

Q: A high tech company uses a satellite to measure the size of features on the surface of the earth.…

A:

Q: A rectangular box with mass 16.5 g is said to have dimensions of 2.8 cm x 1.7 cm * 0.4 cm .…

A: Given data:  A rectangular box  Mass (m) = 16.5 g Length (l) = 2.8 cm Width (W) = 1.7 cm Depth (d) =…

Q: To estimate the size of the moon, a person holds a round pencil of diameter 0.70 cm. When the pencil…

A: Calculate the angle subtended by the moon. θ= Diameter of pencil/distance of moon from eye    =…

Q: What is the width of the doubles service court?

A: The dimensions of badminton court are 20ft × 44ft .

Q: Grains of fine California beach sand are approximately spheres with an average radius of 50 m and…

A:

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.