The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in units of m/s, km/h, ft/s, and mi/h? At this speed, how long would it take to run 1.00×102 yards?

Q: If a sample of unknown substance has a mass of 3.10 kg and a volume of 1.80 L, what is the density…

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Q: Carry out the following conversions: (a) 185 nm to meters, (b) 4.5 billion years (roughly the age of…

A: The conversion of units can be done easily by following a specific method. (a) 185 nm to meters Full…

Q: A student is trying to determine how fast their car drives around a track. If they want to graph the…

A: The rate of change of position of a body is called as velocity. The magnitude of velocity is defined…

Q: A piece of cardboard is 12.0 cm long and 6.3 cm wide. What is the area of this piece of cardboard in…

A: Given,A piece of cardboard is 12.0 cm long and 6.3 cm wide.

Q: In determining the density of a rectangular metal bar,a student made the following measurements:…

A: The density of the metal has to be given, Given data:  length=8.53 cm width,=2.4 cm height,=1.0 cm…

Q: The human body is 75% water by mass. How many L of water is in a person’s body if they weigh 58.25…

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Q: copper wire is 33.99 cm long and weighs 1.621 g. The density of copper is 8.933 g/ cm^3. What is the…

A: Volume of wife is =πr2l Density=mass/volume  Use this formula to get the answer

Q: A cyclist rides at an average speed of 24 mi/h. If he wants to bike 195 km, how long (in hours) must…

A: average speed of cyclist=24 mi/hr distance he wants to cover=195 km as 1 km =0.621 mitherefore 195…

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

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Q: A waterbed filled with water has the dimensions 8.0 ft x 7.0 ft x 0.75 ft. Taking the density of…

A: Given: The dimensions of the waterbed = 8.0 ft × 7.0 ft × 0.75 ft The density of water = 1.00 g/cm3…

Q: An experiment requires 3.5lb of ethylene glycol, a liquid with a density of 1.114g/mL. Rather than…

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Q: A sprinter set a high school record in track and field, running 200.0 m in 21.3 s. What is the…

A: We have to calculate the speed in km/hr .

Q: A sample of sand has a mass of 50.5g and a volume of 331.5 cm^3 . Calculate its density in grams per…

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Q: Ethylene glycol has a density of 1.11 g/cm^3. What is the volume in liters of 589.02 kg of this…

A: Given,Mass of ethylene glycol = 589.02kg. Density of ethylene glycol = 1.11g/cm3.

Q: The density of mercury is 13.534 g/mL. What volume, in L, does 150 g occupy?

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Q: The density of iron is 7.86g/cm^3. calculate the density in kg/m^3 Note: 1mL=1 cm^3

A: Given: The density of Iron is 7.86 g/cm3. The density of a substance is calculated by the formula,…

Q: An iceberg has a volume of 8365 ft^3 What is the mass in kilograms of the iceberg? The density of…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: A piece of metal weighing 305.5 g is placed in a graduated cylinder containing 241.3 mL of water.…

A: Mass of the metal = 305.5 gVolume of the metal = volume of the water displaced = 269.5 mL – 241 mL =…

Q: A sample of mercury is found to have a mass of 524.5 g and to have a volume of 38.72 cm3. What is…

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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.