Explain what a standard candle is and how it could be used to determine a galaxy's distance
What will be an ideal response?
A standard candle is an object with a well-known luminosity, such as a Type I supernova. If we see a standard candle in a distant galaxy, we can measure its apparent brightness and use the inverse-square law to determine its distance.
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What is the closest planet to the sun?
a. Neptune b. Uranus c. Earth d. Mercury e. Venus
Differential rotation is when a planet's equator and polar regions rotate at different rates
Indicate whether the statement is true or false
A 0.50-kg toy is attached to the end of a 1.0-m very light string. The toy is whirled in a horizontal circular path on a frictionless tabletop
If the maximum tension force that the string can exert on an object without breaking is 350 N, what is the maximum speed the toy can have without breaking the string? A) 700 m/s B) 26 m/s C) 19 m/s D) 13 m/s
Sediments that are transported to the sea in solution are known as ______________ sediments
Fill in the blank(s) with correct word