To complete this exercise, you need to know that the circumference of a circle is proportional to its radius, and that the constant of proportionality is 2π. You do not need to know either the radius of the Moon’s orbit or the radius of Earth. For purposes of this exercise, we assume that the Moon’s orbit around Earth is circular. In one trip around Earth, the Moon travels approximately 2.4 million kilometers. Another satellite orbits Earth (in a circular orbit) at a distance from Earth that is 1/4 that of the Moon. How far does this satellite travel in one trip around Earth? (Use decimal notation. Give your answer to one decimal place.) A rope is tied around the equator of Earth. A second rope circles Earth and is suspended 77 feet above the equator. How much longer is the second rope than the first?

Q: Police use the formula: V20L to estimate the speed of a car, v, in miles per hour, based on the…

A: Given: The Length of skid mark L = 158 ft. The velocity formula is given as, v=20L

Q: An airplane flies 320 miles from point A to point B with a bearing of 26°. Then it flies 260 miles…

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Q: What is its length?

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Q: To find the acceleration from equation (a=v^2/r), the velocity of an object traveling in a circle is…

A:

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: onsider the following two values for measurements of length: L1 = 0.0035600 km L2 = 136500 mm (a)…

A: Given that, Length L1 = 0.0035600 km Length L2 = 136500 mm

Q: Soccer fields vary in size. A large soccer field is 120 meters long and 90 meters wide. What are its…

A: Given data:  Length = 120 m Width = 90 m 1 m = 3.281 feet Required: The length and width in feet and…

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: Put the following number in scientific notation, using the number of significant figures listed in…

A: Given : 235,000

Q: When you perform the following operations, how many significant figures should your answer have?…

A: Operation to be performed : (4.0005×105) + (8.000×102)

Q: A person is standing at the edge of the water and looking out at the ocean (see figure). The height…

A: Given, Height of person,h=1.5 m Radius of Earth,R=6.38×106m

Q: In astronomy, a unit of distance is used called the Astronomical Unit. It is the average distance…

A: The given values with suitable variables are listed below. Here, c denotes the light speed and d…

Q: A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is…

A:

Q: A plane leaves at 10:29 P.M and arrives at Las Vegas late the next afternoon at 5:41pm. Exactly how…

A: Given, A plane leaves at 10:29 P.M and arrives at Las Vegas late the next afternoon at 5:41pm.

Q: An airplane flies 200 km due west from city A to city B and then 250 km in the direction of 33.0°…

A:

Q: A new physics unit of distance is created and called the Zarkov.  A student informs you 1 Zarkov (1…

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

A: speed:

Q: Earth, the densest planet in the solar system, has a mass of 5.98 x 1024 kg and a volume of 1.08 x…

A: Given: The mass of the earth is 5.98x1024 kg. The volume of the earth is 1.08x1021 m3.

Q: You leave your home and walk 2 km at an angle 60° north of east (i.e. your direction is 60° if east…

A: firstly we have to calculate the component of 2 Km in east direction i.e positive x direction, which…

Q: A person is standing at the edge of the water and looking out at the ocean (see figure). The height…

A:

Q: The brightest star in the northern hemisphere is Sirius. Its distance from earth is estimated to be…

A: Given The speed of light is c = 3.00 x 108 m/s. The distance of Sirius from the earth is d = 8.7…

Q: A marathoner starts his journey at the fire station, goes 12 km north and turns right at the…

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Q: for this problem the average distance of the earth from the sun is about 1.5×10^8km

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Q: On the surface of the moon, astronomers notice that the distance traveled by an object falling…

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Q: A square cube has sides with dimensions of 2.8 cm.  If the mass of the cube is 58 grams, what is the…

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Q: The side of a square measures 4 m in length. What is the area of the square? O 16 x 10 -4 cm² O 16 x…

A: Side , a = 4 m To find = Area

Q: The cubit is an ancient unit of length based on the distance between the elbow and the tip of the…

A: We are suppose to answer only three sub-parts in a question. Kindly repost other sub-parts as…

Q: Rachel is a 25-year-old Asian woman who weighs 173 lb and is 179 cm tall. Calculate her BMI.

A: Given that, weight =173 lb = 1732.2kg = 78.6 ≈79 kg  Height = 179 cm = 1.79 m

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.