365 days = 1 year ; 24 hours = 1 day ; 60 sec = 1 min :60 min = 1 hr How many minutes are in 2.31 hours?

Q: The last race I ran was a total of 12.4 miles. If my average pace was 7.5 min per mile how many…

A: 1 minute = 60 seconds So, 7.5 minutes = 7.5× 60 seconds = 450 seconds

Q: Lake Baikal in Siberia is the largest freshwater body on Earth by volume, at 5666 mi What is this…

A: This unit conversion can be done by using following relations: 1 cubic mile( mi3) = 1.472 x 1011 ft3…

Q: What is 21.1 miles/hour in furlongs/fortnight? (8 furlongs = 1 mile = 1 fortnight) %3D 168.8 $1x om…

A:

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 car moving at an average speed of 55.0 mi/h for 4.25 h has traveled how far?

A: Given information, Average speed = 55.0 mi/h Time traveled = 4.25 h Calculate : Distance = ?

Q: The rate at which water falls at the Niagara Falls is about 84,760 ft3/s. How many liters of water…

A:

Q: The deepest point in the Mariana Trench is approximately 10.9 km. What is this depth in feet?  (1…

A: Given : depth in Km = 10.9 km

Q: You take 3.40 hours to complete a full marathon, a total distance of 26.0 miles. What is your…

A: The ratio of total distance covered in a journey to the total time taken is termed as the average…

Q: The distance from Earth to the Sun is 1.50 x 108 km. What is the distance expressed in Gigameters…

A: Conversion of units : This can be done by a method called unitfactor method or called dimensional…

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: What is 1/λ (m-1) λ (m) = 4.10288 X 10-7

A: Wavelengthλ is the distance travelled by one comlete wave.It is measured by the distance between two…

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: How many minutes will it take to walk 90.6 feet at a rate of 40.0 meters per minute

A:

Q: Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs…

A: From given datas  Initially mass of red gold alloy is calculated from the sum of mass of gold and…

Q: there was a change in temperature, it was recorded as 55 kelvins. Convert this change in temperature…

A: Solution - According to the question - Given - (55K − 273.15) × 9/5 + 32 =  -360.7°F

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

A:

Q: If a particle is traveling at 98% of the speed of light in a vacuum (2.998 x 10³ m/s), what is its…

A:

Q: The mass of a piece of metal at 172.3 K was found to be 27.0 grams.  What is the density of the…

A: Given that,Mass of piece of metal = 27.0 gVolume = 5.8mLNow you calculate the density in mg/L

Q: At a resting pulse rate of 7777 beats per minute, the human heart typically pumps about 7575 mL of…

A: The density of object is calculated by the formula, Where, m is the mass of an object. V is the…

Q: The distance from New York City to Cleveland is 464 miles. How many kilometers would this be given…

A: Answer  Convert 464 miles into km 1km = 0.621mi

Q: The density of air is 1.29 g/L. What volume (in mL) will 8.00 g of air occupy?

A: Density, mass of a unit volume of a substance. The formula for density is d = M / V where  d is…

Q: At sea, distances are measured in nautical miles and speeds are expressed in knots.  (1 nautical…

A: 1 nautical mile = 1.151 miles

Q: Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of red gold weighs…

A: Red gold is a gold copper alloy used to make jewellery.

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

A: The metre is the length of path travelled by lightin vacuum during a time interval of…

Q: A small hot-air balloon is filled with 1.02×106 L of air (d = 1.20 g/L). As the air in the balloon…

A: Step 1:We have given a hot air balloon which is filled with 1.02×106 L of air and this air is then…

Q: A chemical engineer must report the average volume of a certain pollutant produced by the plants…

A: The pollutant data for each plant is given as,

Q: 365 days = 1 year ; 24 hours = 1 day ; 60 sec = 1 min ;60 min = 1 hr %3D How many seconds are in…

A: 1 minute consists of 60 seconds. And here we have to do unit conversion of minutes to seconds.

Q: 365 days 1 year; 24 hours = 1 day ; 60 sec = 1 min :60 min = 1 hr How many days equal 1.2 r 10°…

A: Here we simply have to divide total seconds by 86400

Q: How many miles in 1.589x10^12nm? 1cm=2.54 12in=1ft. 1mi=5280

A: 1 mile = 1609.344 m 1 nm = 10-9 m   [ nm = nano metre ] Given value is 1.589×1012 nm Convert this…

Q: The speed of light is 3.00x 108m/s (meters per second). What is the speed of light in miles per hour…

A:

Q: How many minutes would it take to go 10.2 km at a speed of 7.65 mi/hr ?

A: Given: Speed = 7.65 mi/hr

Q: The average speed of the International Space Station as it orbits the earth is 7710 m/s.  What is…

A: Distance can be measured in different units such as meters , centimeters , kilometers , miles  Some…

Q: Given that there are 220.0 yards in 1.000 furlong, 2.54 cm in 1.00 inches, and two weeks in a…

A:

Q: (a) the length of a soccer field, 120. m (three significant figures), to feet ft (b) the height of…

A: since,1 m=3.28 ft1 inch=2.54 cm1 short tons=907.185 kg1 kg=2.2046 lb1 oz=28349.5 mg

Q: The contents of one 90. lb bag of topsoil will cover 10. square feet of ground to a depth of 1.7 in.…

A: Given : 1 bag of topsoil will cover area = 10 ft2  And the depth covered by 1 topsoil cover = 1.7 in…

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: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

A:

Q: The mass of a piece of metal at 183.4 K was found to be 37.5 grams.  What is the density of the…

A: Given, mass of metal = 37.5 grams.              Volume = 7.2mLThe grams are converted into…

Q: if a plot of weight in g vs volume in ml for a metal gave the equation y=13.41x and R^2= 0.9981 what…

A: Density, mass and volume of a metal are related as:

Q: How many millimeters are there in 2.5 × 1 0 2 km?

A: By the international system of units, kilometer is the unit given for calculating distances or…

Q: The speed of light in a vacuum is 2.998 x 10 m/s. What is its speed in kilometers per hour (km/h)?…

A:

Q: You are renting a car which is reported to achieve 12.1 km/L. How many miles will you be able to…

A: Conversion of 12.1 kilometer per liter to mile per gallon:

Q: 6.1cm/hr*1m/100cm*1hr/60min*1min/60s=

A: The given problem involves the unit conversions for - 6.1 cm1 hr×1 m100 cm×1 hr60 min×1 min60 s=?

Q: Convert 1010 nm to meters.

A:

Q: You are renting a car which is reported to achieve 10.1 km/l how many miles will you be able to…

A: Conversion of units: 1 gallon = 3.785 L 1 km = 0.62 mile

Q: Consider this formula. If z = 4.0 and y = 9.2, what is the value of x? Express your answer to the…

A: Any final computation of a result must indicate the extent of reliability to be assigned to result…

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

A:

Q: How far does light travel in 4.0μs?

A:

Q: The speed of light in a vacuum is 3.00 x 108 m/s. What is the speed of light in kilometers per hour…

A:

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

A: Given datas –  A piece of gold jewelry weights 21.5 g and has a volume of 1.25 cm3. Density of gold…

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.