Radio Waves travel at the speed of light, which is 3.00X108 m/s. How many kilometers will a radio message to outer space travel in exactly one year? (365.24 days=1 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: 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: nelニn 100cm=lm 10. The speed of light traveling through air is 3.0×108 m/s. If a bolt of lightning…

A: The time taken to travel this distance can be calculated by using formula - Speed = distance/time

Q: 5. In x = -1.45 + In(5.0 × 10) x-?

A: • The given problem is,      ln x = - 1.45 + ln(5.0 × 10-7)     • We need to calculate the value of…

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: The density of a gold nugget is 19.3 g/cm3. If the volume of the gold nugget is 0.00369 L, the mass…

A:

Q: The radio station 99.8 FM broadcasts at a frequency of 99.8 MHz (where 1 MHz = 106 Hz). What is the…

A: The product of wavelength and frequency of the substance is equal to the speed of the light. Write…

Q: A chemist is trying to identify an unknown metal, and finds that 25.0 cm³ of the substance has a…

A: Answer: Relation between Mass, volume and density of a substance is: d=MV

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

A: Mass of sun = 1.99 x 1030 kg

Q: The speed of light is 2.998 × 10° m/s. How far does light travel in 2.0 µs? Set the math up. But…

A: Given : The speed of light = 2.998 X 108 m/s Time = 2.0 µs

Q: zinc and copper are used in the measurement of food. Are there other topics possible

A: A question based on measurement that is to be accomplished.

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: The density of human urine is normally between 1.003 and 1.030 g/mL, and is often used as a…

A: The density of human urine is normally 1.003 to 1.030 g/mL 25 ml of urine has 26.875 g weight

Q: radio waves travel at the speed of light, which is 3.00 x 10^8 m/s. How many kilometers will radio…

A: Velocity = displacement /time Velocity = 3*108 m/s 1m = 10-3km 1 min = 60s, 1hr = 60*60 = 3600s 1day…

Q: A piece of aluminum foil has a known surface density of 15 g/cm2. If a 100-gram hollow cube were…

A: Given: Surface density is 15 g/cm2. Mass is 100 g.

Q: Jupiter’s mass is estimated to be 1.90 x 1027 kg, and it has a diameter of 142,984 km. Assuming that…

A: Density (d) , mass (m) and volume (V) are related as:

Q: A 25.00 grams sample of a metal is placed carefully in a graduated cylinder, and then benzene is…

A: Given : mass of metal = 25.00 g Mass of metal + benzene = 60.85 g Volume of metal + benzene = 50.00…

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

A:

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

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Q: What is the volume of 3.67 kg of mercury at 25 C? You can use any reliable reference to look up the…

A: Given: Mass of mercury (Hg) at 25oC = 3.67 kg Density of mercury (Hg) at 25oC = 13.534 g cm-3

Q: Suppose that the unknown solid object was not a cube but a rectangular prism that has the same…

A: Considered the cube, having the length of each side is l. So, the cube volume is equal to l3.

Q: 17. The element magnesium (Mg) can react with oxygen gas (O2) in the air to produce magnesium oxide,…

A: When Mg react with O2  it gives out MgO whic is white powder. The reaction for this changes is: 2Mg…

Q: A chemist is trying to identify an unknown metal, and finds that 25.0 cm³ of the substance has a…

A: Density = Mass/volume mass = density *volume

Q: A student calculated that the average neutralizing power of their antacid was 102 grams of acid…

A:

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: A sheet of aluminum foil is 85.0 cm long, 35.0 cm wide, and 0.250 mm thick. aluminum has density of…

A: Density of Aluminium = 2.70 g/mlAluminium sheet Length = 85 cmwide = 35 cmThickness = 0.250 mm…

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: Senior High School students discover a vaccine that helps to cure the Covid19 virus. The President…

A:

Q: 4R) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6.00 mg/kg of body…

A: Given: Mass of drug = 6.00 mg/kg mass of person = 134lb To find: The mass of dose in mg

Q: The recommended pediatric dosage of Velosef is 20 mg/kg/day.  What is the daily dose, in mg, for a…

A: Mass = Volume x Concentration

Q: Does each of the following describes a physical or chemical change, explain why. d. the growth of…

A: d. the growth of plants depends on the suns energy in a process called photosynthesis e. a spoonful…

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

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

A:

Q: The different colors of light have different wavelengths. The human eye is most sensitive to light…

A: Since you have asked multiple question we will solve the first one for you. If you want answer to a…

Q: what is the thickness of a material that spreads over an area of 600 cm2  and has a volume of 0.25…

A: Thickness: Volume divided by the area gives the thickness of any object.

Q: You are making sandwiches again. This time, one triple-decker sandwich consists of 4 slices of…

A: A mass relation defines  to the ratio  mass of reactants to mass of products

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: 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…