College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A 4.0cm^3 block of lead has what mass?
Expert Solution
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Step 1
Given value---
- volume = 4 cm3 .
- density of lead = 11.34 g/cm3 .
We have to find---
- mass ?
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- an artifact is dug out of the ground on a greek island and the archeolgist want to determine the type of material it is made of they have a tape measure and a scale that measures mass density instead of mass. they measure the three sides of the artifact to be 1.25mm 2.75mm 3.45mm and mass density of 79.4g/cm^3 what is the mass of the material in grams?arrow_forwardAn automobile tire is shown in the figure below. The tire is made of rubber with a uniform density of 1.10 × 103 kg/m³. The tire can be modeled as consisting of two flat sidewalls and a tread region. Each of th sidewalls has an inner radius of 16.5 cm and an outer radius of 30.5 cm as shown, and a uniform thickness of 0.675 cm. The tread region can be approximated as having a uniform thickness of 2.50 cm (that i its inner radius is 30.5 cm and outer radius is 33.0 cm as shown) and a width of 19.4 cm. What is the moment of inertia (in kg m2) of the tire about an axis perpendicular to the page through its center? " 33.0 cm 16.5 cm Sidewall 30.5 cm Tread Enter a number. find the moment of inertia of the sidewall and the moment of inertia of the tread region. Each can be modeled as a cylinder of nonzero thickness. What is the inner and outer radius for each case? What is the formula for the moment of inertia for a thick-walled cylinder? How can you find the mass of a hollow cylinder?…arrow_forwardWhat is the smallest quantity that can be weighed on a scale that has a sensitivity requirement of 5 mg and an acceptable error of 7%? Select one: a. 56.8 b. 100.2 c. 71.4 d. 120.1arrow_forward
- An irregular shaped object has a mass of 2.945 g and a density of 3.21 g/cm^ 3 What is the object's volume?arrow_forwardA sphere made of either brass or aluminum has a radius r= 10cm. What is its mass?arrow_forwardPlatinum 21.4 x 10 Uranium 18.7x 10 O Description 5 DETAILS SERCP11 7.5.P.044. A 737-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. (a) Find the satellite's orbital speed. m/s (b) Find the period of its revolution. (c) Find the gravitational force acting on it. Submit Answerarrow_forward
- An element makes up 0.0021% of the Earth's continental crust by mass. Express this in ppm (parts per million), to an appropriate number of significant figuresarrow_forwardThe density of aluminum is 2.7 g/cm^3. How much mass is contained in a chunk of aluminum with a volume of 379mL?arrow_forwardthe average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?arrow_forward
- One component of a metal sculpture consists of a solid cube with an edge of length 36.9 cm. The alloy used to make the cube has a density of 6610 kg/m³. Find the cube's mass. m = kgarrow_forwardA solid piece of lead has a mass of 29.89 g and a volume of 2.67 cm³. From these data, calculate the density of lead in SI units (kilograms per cubic meter).arrow_forwardYou will be using these rules in your calculations. As an example of a sample calculation, find the volume of a rectangular solid: V = Lx W x H V = (25.95 cm)(5.87 cm)(83 cm) V = 13000 cm³ = 1.3 x 10“ cm3 Note that when you do this calculation in your calculator, you will have an answer of 12643.0995. However, the 83 cm limits your answer to 2 significant figures, so you must round the final answer to 2 significant figures. Remember you need to keep the place value of the significant figures! The scientific notation helps clarify that none of the zeros are significant.arrow_forward
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