The distance from the earth to the nearest stars is measured in light-years. Convert the distance 6.9 light-years to SI units.

Q: Use significant figures to express the inherent uncertainty in measured quantities and in…

A: The uncertainty in a measurement is an estimate of the amount by which the measurement result may…

Q: A measurement related to the mass and velocity (speed) of particles.

A: Chemistry is the study of matter which has mass and occupy space. Matter is describes in number of…

Q: A cylindrical glass tube 12.7 cm in length is filled withmercury (density = 13.6 g/mL). The mass of…

A: Given, Length of cylindrical tube = 12.7 cm Density of mercury = 13.6 g/mL mass of mercury = 105.5 g…

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: Platinum, Pt, is one of the rarest of the metals. Worldwideannual production is only about 130 tons.…

A: We know that, density can be expressed as,

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: Can you light diamond on fire

A: in combustion reaction compound is burned using help of oxygen gas , when organic compound is burned…

Q: Given the measurement of 7.00 L,  (a) what is the accuracy of this measurement? (b) what is the…

A: (a) The accuracy of 7.00L is 2.(accuracy of a number is the number of digits to the right of the…

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: A length of 155 nm can also be expressed as 1.55 x 104 pm 155000 pm O 0.155 pm 1.55 x 10-6 pm

A: 1 nm = 10-9 m 1 um = 10-6 m

Q: 8.8995 x 105 s =

A: Welcome to bartleby ! Introduction :  We have to convert the units .

Q: Calculate the total mass of water in kg on Earth's surface from the following data: total planetary…

A: Given, total planetary surface area = 510066000 km2            total land area = 148647000 km2…

Q: A student experimentally determines the density of water to be 0.9955 g/mL. The reported density of…

A:

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: 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: 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: 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: 2. If the standard range of Magnesium in the body is 0.70 to 0.95 mmol/L, convert this value into…

A: A certain amount of univalent ions provides the same number of equivalents.  While the same amount…

Q: please help answer questions iii and iv using the given information provided above the questions.…

A: The values are given as follows:

Q: Why do you think the SI standard for time was based on the distance light travels through a vacuum?

A: The reason for the SI standard for time based on the distance light travels through a vacuum needs…

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

A: Solution -

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: 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: What are branches of science and what are the purpose?

A: Science in simple terms is the systematic study of the physical and natural phenomena by closely…

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: 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: 20. An object with a mass of 6.3 kg has a force of 7.1 newtons applied to it. What is the resulting…

A: The answers of the above questions are given in following steps.

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: If the average speed of a helium atom at a certain temperature is 1250 m/s, what is the speed in…

A:

Q: A student finds that 24.96 g of water at 24.9 C(density=0.9971 g/cm3) is required to completly fill…

A: Given data,Mass of water to completely fill the flask=24.96gDensity of water=0.9971g/cm3Mass of…

Q: What is the diameter of the observable universe in gigametres?

A: Answer - The observable universe is a ball-shaped region of the universe comprising all matter that…

Q: A cylindrical glass tube of length 25.75 cm and radius 2 cm is filled with argon gas. The Empty tube…

A: Given: Length is 25.75 cm. Radius is 2 cm. Weight of empty tube is 186.25 g. Weight of tube with Ar…

Q: The distance between two atoms was determined to be 11.4 nm. What is this distance in centimetres?…

A: we know 1 nm = 1.0 * 10-9 m and 1 m = 100 cm => 1 nm = 1.0 * 10-9 m * (100 cm / 1 m) = 1.0 * 10-7…

Q: What is the si unit for the distance from earth to the sun

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: Carry out each of the following calculations, paying special attention to significant figures,…

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

Q: Calculate the mass in kilograms of a 2.14 kg object when its velocity, relative to us, is each of…

A: Mass in kilograms of the object =   2.14 kg  Velocity of light, 3.00 x 108 m/s velocity = 3.28 x…

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: Decide which physical states are indicated in the following statement.  Choose all that apply.…

A:

Q: Convert 1010 nm to meters.

A:

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

A:

Q: A light year is the distance light travels in 1.00 year.  Given the velocity of light, 1.86 x 10(to…

A: Different units are used to express the volume and mass of substances such as grams, micrograms,…

Q: How far does light travel in 4.0μs?

A:

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: 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: The maximum level that the EPA considers safe for lead air pollution is 1.5 micrograms per cubic…

A: Given : Volume of lungs = 5.30 L And maximum safe level concentration of lead = 1.5 µg/m3

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…