radio waves travel at the speed of light, which is 3.00 x 10^8 m/s. How many kilometers will radio messages travel in exactly one year?

Q: During a physics experiment, an electron is accelerated to 67 percent of the speed of light. What is…

A: Unit conversion is one of the important tool in the relative change of the values in measurement.…

Q: A carpet sells for $20.99 per square yard. What is the price of the carpet per square meter? $ /m²…

A: Given: Rate of carpet = $ 20.99 /yard2.

Q: What is the density of gold 19.3 g/cm3 in kg/m3?

A: Given: 19.3 g/cm3

Q: 1. In 1992, the first planets outside the Solar System were detected approximately 1300 light- years…

A: 1. As 1 light year =3.725×1017 inches

Q: Speed of sound in air at room temperature is about 343 m/s. Calculate this speed in miles per hour.…

A: Speed : distance per unit time is defined as speed  Speed = Distance/time  Units:  meter/second s…

Q: What is the mass of the Sun in Mega-grams? (Msol=1.99x1030kg)

A: Mass of sun = 1.99 x 1030 kg

Q: If a tiny marble has a radius of 0.25mm, how many marbles can be lined up across the circumference…

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

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Q: Food safety guidelines recommend that a beef rib roast (bone-in) should cook for 23.0 minutes per…

A: beef rib roast (bone-in) should cook for 23.0 minutes per pound based on a 325 °F oven setting…

Q: A Rectangular sheet of lead shielding is placed over the chest of a patient in a dental office while…

A: Introduction :  We have to calculate mass of lead in grams  Given:  Sheet measurement : 75×50×0.20…

Q: 10. Light can travel from the earth to Mars in 185.2seconds. The speed of light is 6.71x10^8mi/hr.…

A: Answer:- This question is answered by using the simple concept of dimentional analysis which…

Q: One common bathtub is 13.44 dm long, 5.920 dm wide, and 2.54 dm deep. Assume that the tub is…

A: Given: The length, breadth and height of a rectangular bathtub is 13.44 dm, 5.920 dm and 2.54 dm,…

Q: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A: Given: Mass of Earth's crust = 2 ton = 2000 Kg.                             (Since 1 ton = 1000 Kg)…

Q: The distance from the earth to the nearest stars is measured in light-years. Convert the distance…

A:

Q: You are in Paris, and you want to buy some peaches for lunch. The sign in the fruit stand indicates…

A: Given,Peaches cost 4.00 euros per kilogram.1 euro = $1.20.

Q: A metal slug weighing 25.17 g is added to a flask with a volume of 59.7 mL. It is found that 43.7 g…

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

Q: The diameter of a deoxyribonucleic acid (DNA) molecule is about 20 angstroms. Express the surface…

A: Given: Diameter of DNA molecule, d = 20 Angstroms                                                 =…

Q: The density of aluminum is 2.70g/cm^3. For a block of 275g of aluminum calculate the density in…

A: The volume of aluminium and the number of aluminium atoms present in 275 g aluminium is needed to…

Q: un 1066mm- Icm 4 A gold bar has a mass of 12.4kg. What is its mass in milligrams (mg)? 5. The human…

A:

Q: Catalytic converters are used in automobiles to convert harmful gaseous substances in the exhaust to…

A:

Q: The graph below shows a car's speed (in meters per second) over a 10-minute period. Estimate the…

A: Solution -

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: There are 12 eggs in a dozen, If a farmer's chickens produce an average of 495 dozen eggs in a…

A: Given that,  12 eggs = 1 dozen Farmer's chickens produce 495 dozens eggs on average per month…

Q: An empty Erlenmeyer flask weighs 235.6 g. When filled with water (d = 1.00 g/cm3), the flask and its…

A: Given, Mass of flask = 235.6 g Mass of flask + water = 571.3 g Density of water = 1.00 g/cm3

Q: The length of a track race known as "The Olympic Mile" is actually 1500.0 m. What percentage of a…

A: It is given that the length of a track race having a name of Olympic mile is 1500 m, and the…

Q: Iridium has a density of 22.42 x 103 kg/m3. The mass of a weighing boat is tared to zero and the…

A: GIVEN: mass of a piece of iridium and the weighing boat = 107.554 g. Initial volume reacding of…

Q: A person is told that there are 60 minutes in an hour and also that a section of fence is 60 feet…

A:

Q: The space shuttle tiles have a density of 0.0074 lb/in3. Approximately 1320 tiles cover a surface of…

A: Density of a substance can be calculated by dividing the mass by volumewhich may be expressed…

Q: How much would a 34.0 g ingot of gold occupy, with a density of 19.3 g/cm?

A: Density is defined as the mass per unit volume. It is represented by rho (ρ) . It’s relation with…

Q: in the opening scene of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol…

A: Answer: Given data: dgold=19.32g/cm3dsand=3.65g/cm3 Dimensions of gold idol 5inch×5inch×5inch

Q: A bullet is fired at a speed of 2431 ft/s. What is this speed expressed in nanometers per…

A: Please find your solution below : Speed is defined as the distance covered in unit time.   Given…

Q: Dennis obtained a clean, dry stoppered flask. He determined the mass of the flask and stopper to be…

A: Mass of empty flask and water filled flask.

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: Mass and weight are related via the equation W=mg on Earth. Mass is how much matter an object has…

A: Given that: W=mg  m is the mass, it is the matter an object has W is the weight, it is the measure…

Q: The speed of light is 2.998x10^8 m/s. How long does it take light to travel 40.cm? Set the math up.…

A: Given that,    Speed of light, s = 2.998×108 m/s   Distance travel by light, l = 40.0 cm  Time taken…

Q: How many seconds are there in a solar year (365.24 days)?

A:

Q: The distance from the Earth to the moon is 239,000 miles. The distance from the Earth to the moon is…

A:

Q: An empty Erlenmeyer flask weighs 201.9 g. When filled with water (d = 1.00 g/cm), the flask and its…

A:

Q: 1 in = 2.54 cm, exactly 60 min = 1 hr, exactly 12 in = 1 ft, exactly 60 s = 1 min, exactly 4 qt = 1…

A: Recommended dose of a certain antibiotic = 4.5 mg/kg  Dose for a 275 Ib person = ?

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…

Q: At a particular instant in time, the Earth is judged to be92,955,000 miles from the Sun. What is the…

A: Significant figures can be defined as the total number of digits present in the number including…

Q: An object is travelling at a rate of (1.50x10^8) mm/min. How many seconds would it take for this…

A: The relationship between the velocity, wavelength, and frequency of a wave is given by…

Q: Ariel was wondering how much water there was in the sea.  If the total amount of water in the sea is…

A: Given, Volume of water = 3.73 × 108 km3

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

A:

Q: The distance between two adjacent peaks on a wave is called the wavelength.(a) The wavelength of a…

A: Given: Wavelength of UV light = 247 nm Wavelength of red light = 6760 pm W1 is the wavelength of the…