Question

The distance to the North Star, Polaris, is approximately 6.44 1018 m. (a) If Polaris were...

The distance to the North Star, Polaris, is approximately 6.44 1018 m. (a) If Polaris were to burn out today, how many years from now would we see it disappear? y (b) What time interval is required for sunlight to reach the Earth? (The average Earth–Sun distance is 1.50 1011 m.) min (c) What time interval is required for a microwave signal to travel from the Earth to the Moon and back? (The average Earth–Moon distance is 3.84 108 m.) s

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
(a) The distance to a star is approximately 7.25 ✕ 1018 m. If this star were...
(a) The distance to a star is approximately 7.25 ✕ 1018 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take sunlight to reach Earth? minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 ✕ 105 km.) s
Suppose a star is 4.40 ✕ 1018 m from Earth. Imagine a pulse of radio waves...
Suppose a star is 4.40 ✕ 1018 m from Earth. Imagine a pulse of radio waves is emitted toward Earth from the surface of this star. How long (in years) would it take to reach Earth? The Sun is 1.50 ✕ 1011 m from Earth. How long (in minutes) does it take sunlight to reach Earth? The Moon is 3.84 ✕ 108 m from Earth. How long (in s) does it take for a radio transmission to travel from Earth...
The nearest star visible on Earth beyond the Sun is Alpha Centauri. Its distance is 4.2...
The nearest star visible on Earth beyond the Sun is Alpha Centauri. Its distance is 4.2 ly. If light travels 3.0 x 10^8 m/s, how far is this star from Earth in meters? In the next 30.0 s, the Earth will travel roughly 885 km along its orbit around the Sun. Compute its average orbital speed in m/s. If light travels 3.0 x 108 m/s, how much time does it take to travel a. one foot b. one meter c....
a. Determine the acceleration of the Earth about the sun. (GIVEN: Msun = 1.99 x 1030...
a. Determine the acceleration of the Earth about the sun. (GIVEN: Msun = 1.99 x 1030 kg and Earth-sun distance = 1.50 x 1011 m) b. Determine the acceleration of the moon about the Earth. (GIVEN: MEarth = 5.98 x 1024 kg and Earth-moon distance = 3.84 x 108 m)
uring a solar eclipse, the Moon is positioned directly between Earth and the Sun. The masses...
uring a solar eclipse, the Moon is positioned directly between Earth and the Sun. The masses of the Sun, Earth, and the Moon are 1.99×1030 kg,1.99×1030 kg, 5.98×1024 kg,5.98×1024 kg, and 7.36×1022 kg,7.36×1022 kg, respectively. The Moon's mean distance from Earth is 3.84×108 m,3.84×108 m, and Earth's mean distance from the Sun is 1.50×1011 m.1.50×1011 m. The gravitational constant is G=6.67×10−11 N⋅m2/kg2.G=6.67×10−11 N·m2/kg2. Find the magnitude FF of the net gravitational force acting on the Moon during the solar eclipse...
Kepler 1606b is an exoplanet: a planet orbiting a star different than our own. Named for...
Kepler 1606b is an exoplanet: a planet orbiting a star different than our own. Named for the star it orbits (Kepler 1606, a star about 3000 light-years away), it was discovered in the year 2016 by the Kepler space telescope. Kepler 1606b orbits its star a little bit closer than the Earth's orbit to the Sun, at a distance of 0.64⋅?????ℎ, where ?????ℎ=1.50×1011 m is the radius of Earth's orbit. The star Kepler 1606 is bit cooler than our Sun,...
1. Uranus's moon Titania has a radius of 7.89 ✕ 105 m and a measured gravitational...
1. Uranus's moon Titania has a radius of 7.89 ✕ 105 m and a measured gravitational field of 0.377 m/s2. What is its mass (in kg)? 2. Earth is 1.5 ✕ 1011 m from the Sun. Jupiter is 7.8 ✕ 1011 m from the Sun. How does the gravitational field of the Sun on Jupiter (gSJ)  compare to the gravitational field of the Sun on Earth (gSE)? gSJ gSE 3. In a high school swim competition, a student takes 1.8 s...
Kepler 1606b is an exoplanet: a planet orbiting a star different than our own. Named for...
Kepler 1606b is an exoplanet: a planet orbiting a star different than our own. Named for the star it orbits (Kepler 1606, a star about 3000 light-years away), it was discovered in the year 2016 by the Kepler space telescope. Kepler 1606b orbits its star a little bit closer than the Earth's orbit to the Sun, at a distance of 0.64⋅rearth, where rearth=1.50×1011 m is the radius of Earth's orbit. The star Kepler 1606 is bit cooler than our Sun,...
Given that the radius of Earth is 6.37 x 106 m and the average distance from...
Given that the radius of Earth is 6.37 x 106 m and the average distance from the Sun to the Earth is 1.50 x 108 km: (a) What fraction of the radiation emitted by the Sun in intercepted by the Earth? (b) A satellite in Earth orbit measures an intensity of 1350 W/m2 (this is a standard used in satellite construction: “AM0”), what is the total power output of the Sun based on our near- Earth satellite measurements? (c) Measured...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT