Physics

A thin sheet of gold foil has an area of 2.98 cm2 and a mass of 6.20 mg. How thick is the sheet? The density of gold is 19, 300 kg/m3.

  1. 👍
  2. 👎
  3. 👁
  1. mass=density*volume=density*area*t

    thickness=mass/density*area

    = 6.20E-6kg/(19.300kg/m^3*(2.98cm^2)(m/100cm)^2

    = 6.20E-6/(19.300*2.98E-4) m
    =1.08mm

    check my work, that seems pretty thick .

    1. 👍
    2. 👎
    👤
    bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. geometry

    1. What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm? 224 cm2 448 cm2 896 cm2 2508.8 cm2 2. What is the lateral surface area of a cone with radius 19 cm and slant height 11 cm? 19

  2. Geometry

    3. A department store sells small boxes in which customers can store potpourri. The diagram below shows one of the boxes. The diagram is not drawn to scale. 3.12cm, 17cm, 5cm What are the laretal area and the surface area of the

  3. Algebra

    Use 3.14 for Pi and round to the nearest tenth. Find the surface area of a sphere with a radius of 8 cm. A)267.9 cm2 B)803.8 cm2 C)2143.6 cm2 D)201.0 cm2 Is it B?

  4. math

    You may use a calculator to complete this assessment. Find the area of the triangle. A triangle is drawn with the longest, horizontal side labeled 22 feet. A vertical dashed line labeled 7 feet is drawn to the opposite vertex. A

  1. math

    Find the surface area of a square pyramid with a base length of 11 cm and a slant height of 15 cm. (1 point) A.472 cm2 B.451 cm2 C.781 cm2 D.330 cm2

  2. mathematics

    The mass of a sheet of metal varies jointly with its area and its thickness.A sheet of metal of area 250 cm square and thickness 1 mm has a mass of 200 g. (a) Find the formula which connects the mass Mg,the area A cm square and

  3. Physics

    In 1910 Rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil. He unexpectedly observed a few of the particles scattered almost directly backward. This result was not

  4. math HELP!!!!!!!!!!

    A rectangular prism has the following dimensions. length: 8 cm width: 13 cm height: 10.5 cm If all the dimensions of the prism are doubled, what will be its new surface area? 1,298 cm2 4,192 cm2 2,596 cm2 4,368 cm2

  1. physics

    The length and breadth of a rectangular sheet are 16.2 cm and 10.1cm, respectively. The area of the sheet in appropriate significant figures and error is (a) 164 ± 3 cm2 (b) 163.62 ± 2.6 cm2 (c) 163.6 ± 2.6 cm2 (d) 163.62 ± 3

  2. Chemistry (urgent)

    The gold foil Rutherford used in his scattering experiment had a thickness of approximately 4×10^−3 mm. If a single gold atom has a diameter of 2.9 x10^-8cm , how many atoms thick was Rutherford's foil? Express your answer

  3. Geometry

    1. Find the surface area for the given circle. A.) 564 in² B.) 664 in² C.) 1,120 in² D.) 1,080 in² 2. Find the lateral area for the given prism. A.) 1,092 cm² B.) 998 cm² C.) 1,272 cm² D.) 870 cm² 3. Find the surface area

  4. Mathematics

    the mass of a sheet of metal varies jointly with its area and its thickness a sheet of metal of area 250 cm square and thickness 1 mm has a mass of 200 g find the formula which connect the mass,the area and the thickness

You can view more similar questions or ask a new question.