Mr Fast runs 3.7km. Mr Slow runs 630m. How much further does Mr Fast run than Mr Slow?   Add together 4.5km, 120m and 50cm     I have four pieces of string. They are 3m, 45cm, and 25cm long. What total length in cm do I have?

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: One cubic centimeter (1.0 cm3) of water has a mass of 1.0 x 10 -3 kg. Determine the mass of 1.0 m3…

A: cm3 and m3 is unit of measurement. 1 m = 100 cm or 1 cm = 10-2 m

Q: Sugar has a density of 1.59g/cm3. A single pack of sugar has an average mass of 7.5g. What is volume…

A: Volume is the amount of 3D space a substance or object occupies. ... Volume is a derived unit,…

Q: A general chemistry student found a chunk of metal in the basement of a friend's house.To figure out…

A: Mass of metal (M) = 111.2 grams When the metal is dropped into a measuring cup and found that it…

Q: A 1.00 m long beam of stainless steel with a square 2.00 cm X 2.00 cm cross-section has a mass of…

A: Length = 1.00mWidth = 2.0cm = 0.02mBreadth= 2.0cm = 0.02m

Q: The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s.…

A: Length of swiming pool = 1500.0 m1 mi = 1609 mLength of swiming pool = 1500.0 m1609 m* 1 mi = 0.9322…

Q: The density of titanium is 0.163 lbs/in3. Convert this density to g/cm3. 1 in = 2.54 cm. assume 1…

A: Dimensional analysis is used to convert a physical quantity given in one type of unit to some other…

Q: Iron has a density of 7.87 g/cm³. If 84.7 g of iron is added to 83.4 mL of water in a graduated…

A: Given -> Density = 7.87 g/cm3 Weight of iron = 84.7 gm  Volume of water = 83.4 ml

Q: Which one of the following is the longest length? (1 ft = 12 in, 1 in = 2.54 cm) 3.2 m, 145 in,…

A: The given values are in different units. First all the values have to be converted into one single…

Q: A brick of a certain metal has area on top of 2.15 cm x 5.24 cm. It has mass 1,036 g. How high is…

A: Given that:  Metal area = 2.15cm×5.24cm  Mass = 1.036g  Density = 2.7g/cm3 Density formula : mass ÷…

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: Aluminum has a density of 2.70 g/cm3. What is the mass of an aluminum cube with a length of 3.61 cm?…

A: Length, a = 3.61 cm Volume of cube is obtained from length – Volume = a3=3.61 cm3=47.046 cm3

Q: Iron has a density of 7.87 g/cm³. What mass of iron would be required to cover a football playing…

A: Given,  Surface = 120 yds × 60 yds  Depth = 1.0 mm  Density of iron= 7.87 g/cm3

Q: You have a beaker full of benzene. Benzene is a liquid with a density of 0.874 g/mL. A rock weighing…

A: Given : Mass of rock = 50.0 g Mass of benzene displaced = 35.67 g And density of benzene = 0.874…

Q: Human fat has a density of 0.918 g/cm3. How much volume (in cm3) is gained by a person who gains…

A:

Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

A:

Q: -7 mmol/L mercury(I) chloride (Hg,Cl,) solution to a reaction flask. Calculate the mass in…

A: The amount of substance is usually defined in terms of mole. The mole is the SI unit of the quantity…

Q: An empty beaker weighs 42.09 g.42.09 g. When completely filled with water, the beaker and its…

A:

Q: A weather balloon (spherical) filled with helium has a diameter of 3.50 ft.  What is the mass in…

A:

Q: The men's world record (as of 2007) for swimming 1500 m in a long course pool is 14 min 34.56 s. At…

A: For swimming 1500 m , Time required = 14 min 34.56 sec   We have to find the time required to swim…

Q: What is the volume of 25.5 g of water in m3 ? Use the density of the water, 0.997 07g/mL. Note that…

A: Given: Mass of water = 25.5 g  Density of water = 0.997g/mL 1 mL = 1 cm31 cm = 10– 2 m Hence, 1 cm3…

Q: A person is 1.790 yards tall. How tall is he in cm? 1 yd = 3 ft, 1 in = 2.54 cm O 1.728 cm 4.801 cm…

A:

Q: You walk 3.67 miles. Your pace is 4 miles per hour. Your stride is 2.6 feet. How many strides will…

A: Dimensional analysis is used to convert a physical quantity given in one type of unit to some other…

Q: How many inches are in 382.5 cm? (1 in = 2.54 cm) Multiple Choice O 971.6 in 150.6 in 151 in 6.641 x…

A: We have been given I in = 2.54cm. We have been asked to calculate how many inches are present in…

Q: As exact conversions, the following information is known: 1 mile = 5280 ft. 12 in. = 1 ft. 3 ft. =…

A:

Q: How many inches is 87.3cm? You know that 1in = 2.54cm

A: The given length is = 87.3 cm We know that: 1 in = 2.54 cm

Q: Human fat has a density of 0.918 g/cm3. How much volume (in cm3) is gained by a person who gains…

A: The density of a substance is equal to the ratio of its mass and volume. In general, the density of…

Q: A metal alloy pendant is 47.5% gold. 33% lead and 19.5% silver. Its density is 13.8 g/cm3. A metal…

A: Given  Metal pendant contain Gold = 47.5% Lead = 33% Silver = 19.5% Density = 13.8 g/cm3 Volume rise…

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

Q: An empty beaker weighs 39.81 g. When completely filled with water, the beaker and its contents have…

A: Given:  The mass of an empty beaker = 39.81 g The mass of the beaker when it is completely filled…

Q: Lead has a density of 11.3 g/cm3. What volume would a 1432 g block of lead occupy?

A: Given, density = 11.3 g/cm3. Mass = 1432 gm

Q: What is its density in kg/m3?

A: Given :- density of Be = 1.85 g/cm3  To calculate :- density in kg/m3

Q: It has been estimated that there is 4.00 × 10-4 mg of gold per liter of seawater. At price of…

A: the volume of ocean is given as 7.53  km3  = 7.53 X 1 × 1015 cm3 = 7.53 X 1015 cm3  since 1 cm3 = 1…

Q: What is the thickness of a sheet of tin, measuring 75.0 cm long and 50.0 cm wide and weighing 4125…

A: We have find out the thickness of sheet.

Q: A solid metal object with a mass of 163 g is added to a graduated cylinder which originally contains…

A:

Q: The density of tungsten metal is 19.35 g/cm3g/cm3. Part A What is the density of tungsten in pounds…

A:

Q: Three blocks of the same shape and size are placed in front of you. Block A has a mass of 3.0 g,…

A: Three blocks A, B, and C of the same shape and size are considered. This implies that they have the…

Q: She measured the mass of the metal to be 197 grams. Then she dropped the metal into a measuring cup…

A:

Q: The maximum dosage of medicine A is listed as 20.0 mg per kg of body weight per day. The adult…

A:

Q: Diamond has a density of 3.52 g/mL. What is the volume in mL of a diamond with a mass of 15.1 g?…

A:

Q: 1.165 A steel sphere has a radius of 1.58 in. If this steel has a density of 7.88 g/cm3, what is the…

A:

Q: A loaf of bread with a volume 3,040 cm3 and density 0.248 g/cm3 is crushed in the bottom of a…

A: Given: The volume of a loaf of bread = 3040 cm3 The density of the loaf of bread = 0.248 g/cm3 We…

Q: cats love to play with balls of yarn. if a 3.75 inch diameter ball of yarn weighs 0.110 lbs, what is…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.