a police car on a high speed chase travels at a speed of 85 mi/hr. the chase covered 82.3 miles of roadway . for how long were the police chasing the suspects ?

Q: Bronze is an alloy made of copper (Cu) and tin (Sn). The composition of the bronze is 79.42% Cu and…

A: Given that,           Bronze is an alloy of Cu and Sn.            % of Cu=79.42%           % of…

Q: A cylindrical metal rod is 1.35 m long, and it has a uniform diameter of 0.750 inch. What is the…

A: Since it is a cylindrical metal rod then the volume of the metal rod can be calculated as follows: V…

Q: A cyclist travels at a rate of (2.30x10^1) miles per hour. At this speed, how many minutes would it…

A: Speed of cyclist = 2.30 x 10 = 23 mi/hour Distance to be covered = 2.25 x 102 = 225 km Time to…

Q: 9. If 86 g of a substance has a volume of 125 cm³, what is the density of the substance?

A:

Q: If light travels exactly 1 meter in 1/299,772,458 of a second, how many kilometers does it travel in…

A: The speed of the light refers to the distance travelled by the light in a given unit of time. The…

Q: The densities of cork, lead, and water are 0.240 g/cm3, 11.34 g/cm3, and 0.997 g/cm3 at 25 °C,…

A: We have to calculate the overall density .

Q: A small airplane takes on 245 L of fuel. If the density of the fuel is 0.821 g/mL, what mass of fuel…

A: Given: Volume of fuel = 245 L = 245000 mL Density of fuel = 0.821 g/mL

Q: A student's commute to school is a distance of 23 km. If he travels at 45 miles/hr how many minutes…

A: Given : Distance in Km = 23 km And speed of student =  45 miles/hr.

Q: The speedometer is marked in both km/h and mi/h, or mph. What is the meaning of each abbreviation?

A: The meaning of abbreviation in the speedometer has to be given,

Q: You are renting a car which is reported to achieve 13.7 km/L. How many miles will you be able to…

A: Given Mileage = 13.7 km/L Volume = 11.0 gallons 1 gallon = 3.785 L 11 gallons = 41.64 L

Q: 248

A: Density= mass/volume Mass = density× volume Density=10.5 g/ cm3 Volume= 23.6cm3

Q: How many miles a car at 80 km/h would travel in 1800 s?

A: Hours, minute and seconds are some common units of time. These units can be converted into each…

Q: Gold is alloyed with other metals to increase its hardness in making jewelery. You have a piece of…

A: Given:Density of pure gold = 19.3 g/cm3Density of pure silver = 10.5 g/cm3Volume of piece of…

Q: A student needs to run 3.2 km to get to school. If the student can run 5.5 mi/hr, how many hours…

A: Given: Distance to be travelled to get to school = 3.2 km Speed of student = 5.5 mi/hr To calculate:…

Q: Approximately 75mL of blood is pumped by a normal human heart at each beat. Assuming an average 72…

A:

Q: A small airplane takes on 210 L of fuel. If the density of the fuel is 0.821 g/mL, what mass of fuel…

A: Given,  Volume of fuel = 210 L  Density of fuel = 0.821 g/ml  Formula used,  Density = mass / volume…

Q: In an attempt to determine the velocity of a person on a bicycle, an observer uses a stopwatch and…

A:

Q: A chemist has a block of iron metal (density is 7.87 g/mL). They drop the metal into a graduated…

A: Density of Iron block = 7.87 g/mL Volume changes of water = 2.10 mL

Q: A high-­‐speed    chase    captured    on    a    surveillance    camera    showed    the    suspect…

A: Given: distance = 41.2 ft time = 0.546 s Speed limit = 25 mph

Q: A chemist has a block of gold metal (density is 19.3 g/mL). They drop the metal into a graduated…

A: Given data, Density = 19.3 g/mL Volume = 1.90 mL To calculate the mass in grams.

Q: You are driving 65 mi/h and take your eyes off the road for “just a second.” Whatdistance (in feet)…

A: Given data contains, Velocity is 65 mi/h.

Q: Iron has density of 7.87 g/cm3 if 64.2 g of iron is added to 52.5 ml of water in a graduated…

A:

Q: A rectangular block of cadmium has a length of 10 cm and a width of 5 cm. If the mass of the block…

A:

Q: A jet airplane reaches 887. km/h on a certain flight. How long does it take to cover 454. m? Set the…

A:

Q: Suppose your car is rated at 45 mi/gal for highway use and 38 mi/gal for city driving. If you wanted…

A: Given:-Car rate for highway=45 mi/galCar rate for city driving =38 mi/gal

Q: If an object is traveling at a speed of 400 m/s, how long (in hours) will it take to reach 950.5 km?…

A:

Q: To measure the volume of an irregularly shaped object, one must measure the volume of water it…

A: As the volume of the chunk of copper = volume of water displaced by it The volume of the chunk of…

Q: The distance from the Earth to the moon is 239,000 miles. The Apollo 11 mission took 73.45 hours to…

A:

Q: British driver Andy Green broke the land speed record at Black Rock Desert on October 15, 1997. He…

A:

Q: If a lake has a surface area of 13.5 km2 and an average depth of 17.4 m. What is the volume of the…

A: Surface area = 13.5 km2  Depth = 17.4 m  Volume = ?

Q: 1. The density of air is given as 0.00118 g/mL, and the total volume of air is found to be 105.89…

A:

Q: if i start in washington dc , and drive to new york, how many seconds will it takes if i drive 54…

A:

Q: What is the cost of unleaded gasoline in Manila in USD per gallon? (b) How much would a tankful of…

A:

Q: after you have worked out at the gym on a stationary bike for 49.0 minutes, the distance guage…

A: Given data:

Q: A bullet leaving the muzzle of a pistol was traveling at a speed of 2450 feet per second. What is…

A:

Q: A gasoline station in Manila, Philippines, charges 38.46 pesos per liter f unleaded gasoline at a…

A: 1 L unleaded petrol costs 38.46 pesos(PHP). 1 USD is equivalent to 47.15 PHP. Capacity of the tank…

Q: The density of osmium (the densest metal) is 22.57 g/cm3. What volume would be occupied by 2.74 kg…

A: The volume occupied by 2.74 kg of osmium is calculated as,

Q: Charlotte is driving at 52.1 mi/h and receives a text message. She looks down at her phone and takes…

A: Solution: We know the formula for speed of any object. speed =  distance travelled by an object /…

Q: One light year is the distance that travels in exactly one year. If the speed of light is 6.7 * 10^8…

A:

Q: An object has a volume of 4.3 x 103  cm3,  and a density of 13.27 g/cm3.  WHAT IS  THE MASS OF THE…

A: The volume of the object is given as 4.3 x 103 cm3 and the density is given as 13.27 g/cm3. The mass…

Q: one box of iron nails contains 85 nails and weighs 0.260lbs lbs total. The density of iron is…

A: As there is water inside the cylinder if we are adding some iron nails in it there will be a rise in…

Q: The speed of light in a vacuum is 2.998×108 m/s. Calculate its speed in miles per hour (miles/h).

A: Meter and miles are some common units of distance. Similarly, hours and seconds are units of time.…

Q: Prior to hosting an international soccer match, the local soccer club needs to replace the artifical…

A: Given: Length of the field = 0.100 km Width of the field = 0.074 km  Cost of grass turf =$9.00 / m2

Q: The world's oceans have a combined volume of 3.204 x 108 miles3. (b) The Atlantic Ocean has a…

A:

Q: In An Attempt To Determine The Velocity Of A Person On A Bicycle, An Observer Uses A Stopwatch And…

A:

Q: A sprinter set a high school record in track and field, running 200.0 m in 20.5 s. what is the…

A:

Q: If you travel to Canada, speed limits are posted in km/hr. For a speed limit of 70. mi/hr, what…

A: Given :-  Speed = 70 mi/hr  To convert :-  The given speed in Km/hr

Q: Radio waves travel at the speed of light, which is 3.00 x 10⁸ m/s. How many kilometers will radio…

A: Answer The distance traveled by radio messages in one year = 3.154*1012 kilometers Hint Speed of…

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.