distance between the Earth and Mars is 378,000,000 km and the minimum distance is 168,000,000 km. The maximum amount of time for a radio signal to travel from Mars to Earth is seconds.

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 wavelength of a radio wave from an AM station broadcasting at 1,000 kilohertz on your radio dial…

A: Given data *The given frequency is f = 1000 kHz = 10 × 105 Hz *The given wavelength is λ=300 m

Q: A space craft achieved a maximum speed of 125,000 km/h on its way to photograph Mars. Beyond what…

A: Given:maximum speed,vv= 125,000 km/h  =3.472×104 m/sSun of mass,m=2×1030 kgGravitational…

Q: If you ran 5,890 meters, how many miles did you run? 1 meter = 3.281 feet 5280 feet = 1 mile

A: The distance traveled by a person is given as, d=5890 m

Q: for any wave, the speed equals the wavelength times the frequency. If a photon of visible light has…

A:

Q: How long will it take to drive 1,300 km at 100 km per hour, if you take a one-hour break after every…

A: starting the journey at 100 km/h it will go  in 5 hour : 100x5 = 500 km then take a break for 1 hour…

Q: Half-life is the period of time it takes for the amount of a radioactive substance to decrease by…

A: The time dilation equation is, τ=τ01-v2c2 Here, the total life is τ0,

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

A:

Q: If the intensity of visible light from a flashlight is 8 millilumens at a distance from the source…

A: Given:- intensity of visible light (I1)=8 millilumensdistance from the source(D1)=5 feetlet the…

Q: A space craft achieved a maximum speed of 125,000 km/h on its way to photograph Mars. Beyond what…

A: The spacecraft can escape the solar system when its kinetic energy is greater than the gravitational…

Q: A planet with mass 8.07x1023 kg orbits a star with mass 1.18x1030 kg. The orbit is circular, and the…

A:

Q: A spaceship is stationed on Mars. How much energy must be expended on the spaceship to launch it out…

A: GivenMass of the space ship m= 1000 kgmass of the sun msun = 2×1030 kg;mass of mars mmars = 6.4×1023…

Q: The actual average earth-moon distance is about 384,000km, and earth's diameter is about 128,800km.…

A: Given value--- Earth moon distance = 384000 km. Earth diameter = 128800 km. We have to find---…

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: a submarine sends a sonar signal, which returns from another ship 12 seconds later. how far away is…

A: Data provided: Total time taken to returns sonar signal (t) = 12 seconds Speed of sound in seawater…

Q: where do you think we should establish a colony first? In Mars or in Moon?

A: We should establish a colony first where the length of the day, atmosphere, water availiblity,…

Q: How long would it take a space craft that was traveling at a speed of 61,079 km/hr to travel a…

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Q: What is the wavelength (in kilometers) of the 56,500-Hz radio wave used clocks and wristwatches?…

A:

Q: Mars is approximately 1.5 AU away from the Sun. Approximately how long does it take light to reach…

A: Mars is the 4th planet from the sun, with distance ranging around 1.5AU. 1 A.U = 1.496 × 108 km∴ 1.5…

Q: An aircraft can fly 1,330 miles with the wind in 5 hours and travel the same distance against the…

A: An aircraft can fly 1,330 miles with the wind in 5 hours and travel the same distance against the…

Q: A submarine sends a sonar signal, which returns from another ship 8 seconds later. How far away is…

A:

Q: If the frequency of the wave used by your favourite station is 97.6 Megahertz, what is the…

A: In the question given Frequency= 97.6 MHz and we have to find the value of wavelength. And given the…

Q: If chikana walks at 4 mph, he covers a certain distance. If he walks at 9 mph, he covers 7.5 miles…

A: Given data: Speeds: v1=4 mph; v2=9 mph Distance, d2=7.5 mi

Q: The distance from Earth to Mars is about 784,000,000 km. How many light-years is this?

A:

Q: if mars has a mass of 6.417 × 10^23 kg how many joules of energy does it receive?

A: Given: The mass of mars is m=6.417×1023 kg.   The expression of energy is given by, E=mc2 Here, c…

Q: The Pioneer 10 spacecraft has left our Solar System and is traveling at a speed of 45,000 km/h (and…

A: The Pioneer 10 spacecraft has left our Solar System and is traveling at a speed of 45,000 km/h…

Q: An average eardrum has an area of about 5.0x10-5m2. What is the force in Newton's exered on an…

A: Area 'A' = 5 x 10-5 m2 depth under the water 'h' = 2.39 m  g = 9.8 m / s2

Q: Weight is mass times the acceleration of gravity. If an individual weighs 162 pounds on Earth, how…

A: Let m is the mass of the individual and g is the acceleration due to gravity on Earth. The…

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

A:

Q: How many meters above the ground is an airplane flying at an altitude of 2,000 feet?

A: Given , altitude = 2000 feet. So height in meter = 0.3048× height in feet So height or altitude from…

Q: A 50 kilogram ice skater glides across the ice in a straight line at 7 meters per second. If she…

A:

Q: Considering that you would stop to rest for 10 hours after every 11 hours of driving, if you can…

A: 10 hrs rest after every 11 hrs v=55mph D=2255 mile

Q: Sphere A has a mass of 3,450,818kg and sphere B had a mass of 293,183kg. If the magnitude of the…

A: Given, m1=3450818 kg m1=293183 kg F=6.8 N

Q: ace probes to Mars have shown that its atmosphere consists mostly of carbon dioxide. The average…

A: for a given volume  density = k pressure / temp on mars      T= 273 - 55 =218 K…

Q: A submarine sends a sonar signal, which returns from another ship 7 seconds later. How far away is…

A:

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

A:

Q: The surface gravity on the Moon is about 1/6 that of the Earth. If you weigh 220 lb on a scale on…

A:

Q: The moon has a mass of 7.34 x 1022kg and a radius of 1.74 x10 m. If you have a mass of 66kg, how…

A:

Q: The habitable part of earth's surface has been estimated to cover 60 trillion square meters.…

A: Given data: Habitable area = 60 trillion m2                     = 60*1012 m2 On an average, area…

Q: What is the speed of a wave that has a wavelength of 0.00038 meters and a frequency of 2 MHz?

A: Given that λ=0.00038 mf=2 MHz=2×106 Hz

Q: Please choose the word that best completes the sentence below. is an interesting form of remote…

A: I think it a graded question Radars and lasers are breathtaking characteristics of sci-fi movies no…

Q: a submarine sends a sonar signal, which returns from another ship 7 seconds later. how far away is…

A:

Q: If a ping pong ball launcher is at a 45 degree and the ping pong ball reaches a distance of 1.2…

A:

Stellar evolution

We may see thousands of stars in the dark sky. Our universe consists of billions of stars. Stars may appear tiny to us but they are huge balls of gasses. Sun is a star of average size. Some stars are even a thousand times larger than the sun. The stars do not exist forever they have a certain lifetime. The life span of the sun is about 10 billion years. The star undergoes various changes during its lifetime, this process is called stellar evolution. The structure of the sun-like star is shown below.

Red Shift

It is an astronomical phenomenon. In this phenomenon, increase in wavelength with corresponding decrease in photon energy and frequency of radiation of light. It is the displacement of spectrum of any kind of astronomical object to the longer wavelengths (red) side.