In astronomy, distances are often expressed in light-years. One light-year is the distance traveled by light in one year. The distance to Alpha Centauri, the closest star other than our own sun that can be seen by the naked eye, is 4.3 light-years. Express this distance in meters.

Q: Prof. Chini's research group uses short bursts of laser light to measure the motion of electrons…

A:

Q: A particular MP3 encoder can convert 87.0 kilobytes (kB) of music per second from a typical music…

A: The encoder converts  data in one second.Note:Find:Time taken by encoder to convert  data.

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: 1 light year is the distance traveled by light in one year. 1 year = 365.25 days            = (…

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: Data Given ,  1 light year is the distance traveled by light in one year . 1 year = 365.25 days…

Q: The volume of an iron cube is 1000 cubic units. The density of iron is 7.87g/cm^3 calculate the mass…

A: Definition of density Density of an object is defined as mass of the object per unit volume. Density…

Q: How many significant figures are in the number 0.0037010?

A:

Q: Using a single dimensional equation, estimate the number of steps it would take a person with a step…

A: Given data: -  The step length of a person is l = 2.65 ft. The distance of Alpha Centauri from the…

Q: The Earth is approximately spherical, with a radius of 6.37x106 m. Calculate the surface area of the…

A: Solution: Given data, The earth is approximately spherical. The radius of earth (R)=6.37×10⁶ m…

Q: How many times longer than the mean life of an extremely unstable atomic nucleus is the lifetime of…

A: Given that, the life time of unstable atomic nucleus is in the order of 10 s. (In actual case, it is…

Q: How many millimeters (mm) is equivalent to 2 km

A:

Q: The distance from Earth to the Moon is approximately 270,000 mi. The speed of light is 3.00 × 108…

A: Distance, d = 270,000 mi = 434522880 mSpeed, v = 3×108 m/sTime, t = ?

Q: The diameter of hydrogen atom is about 1.04 times 10-10 meters. A protein molecule has an overall…

A: Question is to find length of proton molecule in meters.

Q: The ratio of circumference to diameter for all circles is

A: Write the expression of the circumference of a circle in terms of its radius as: The formula for…

Q: What is the difference between something that works in nanoseconds and something that functions in…

A: The order of magnitude of something that works in nanoseconds is 10-9 s It is because 1 ns = 10-9 s…

Q: You are standing a distance x from a building with height y. If the straight line distance between…

A:

Q: Convert 74 millimetres (mm) to kilometres (km) Answer: 7.4e-5 Convert 115 cm2 to km2 Answer: 1.15e-8…

A: The conversion of millimeters (mm) into kilometers (km) is determined as 74 mm=74×10-3 m=74×10-3…

Q: The number of square centimeters in 4.00 square meters is O 1) 4000 O 2) 400 O 3) 40 O 4) 40000

A: Given  4 m2

Q: The diameter of a hydrogen atom is 0.00 000 000 012 m. Express this measurement using SI prefix to 3…

A: From the rule of Significant figures we find that, Trailing Zeros that are not used to hold the Zero…

Q: In MKS (SI units), mass is expressed in kilogram (kg), length in meter (m) and time in second (s).…

A: speed:

Q: A man leaves his front door, walks 1000 ft east, 2000 ft north, and then takes a penny from his…

A: Consider the man leaving his front door and walking in the east direction which is represented by…

Q: A beam of light traveling through the air has a wavelength of ) = 501 nanometers. What is the…

A:

Q: A unit called the beard-second is the length the average beard grows in 1 second. A beard-second is…

A: Given 1 beard-second = 10×10-9 m

Q: and your friend both start your trips in Chicago. Driving nonstop, you reach Los Angeles — a…

A: Speed = distance travelled /time taken  1day = 24 hrs  1hours = 60 min  1 min = 60 sec

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A:

Q: A parsec is an astronomical unit of distance where 1 parsec = 3.26 light years (1 light year equals…

A:

Q: A patient’s temperature was 97.0 °F at 8:05 A.M. and 101.0 °F at 12:05 P.M. If the temperature…

A: Temperature was 97.0 °F at 8:05 A.M.  And 101.0 °F at 12:05 P.M. Temperature at 3:35 P.M. = ?

Q: Expression for time in terms of G (universal gravitational constant), h (Planck's constant) and c…

A: This problem can be solved by matching units on both sides.

Q: A cell biologist measures the width of a cell. The width is 72μm . What is the width in meters?…

A:

Q: Convert the following standard form into scientific notation. 000000027 = ___2.7X10-8 356 =…

A: Scientific notation is a method which represents a number between 1 to 10 multiplied by the power of…

Q: . (Violet) 400 nm 2. (Red) 700 nm = . (Infrared) 800 nm. (Infrared)1600 nm = . THz? THz? THz? THz?

A:

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: Speed of light=3×108 m/s Light travels in a year=             3×108×365.25×24×3600 m…

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: Solution attached in the photo

Q: A square field measuring 100.0 m by 100.0 m has an area of 1.00 hectare. An acre has an area of…

A: Given that, 1 hectare area = 100 × 100 = 10000m2 1 acre area = 43600 ft2  = 43600× ( 0.3048)2  m2  =…

Q: A patient’s temperature was 97.0 °F at 8:05 A.M. and 102.0 °F at 12:05 P.M. If the temperature…

A: As the patient’s temperature change with respect to elapsed time was linear throughout the day so…

Q: When I was a young adult , I made two trips down the coast of California on a bicycle. If I was…

A: The average speed of the bicycle = 8 miles/hr. Distance to be covered = 2.3 miles.

Q: In astronomy, distances are often expressed in light-years. One light-year is the distance traveled…

A: We know, light travels at 3*108 m/s So, 1 light year = (3*10^8 m/s)*(3600 s/hr)*…