3. Hubble's law:
A. Can be safely applied to nearby galaxies
B. Cannot be safely applied to nearby galaxies
C. Is the farthest-reaching distance indicator
D. A & C
E. B & C

3. Hubble's law: A. Can be safely applied to nearby galaxies B. Cannot be safely applied...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km'sMlly. The formula is v = Hod where H0 is the Hubble constant and d is the distance between the galaxies. A galaxy is 10 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula isv Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per second?...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula is v Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per...
please help to deal with these 3 questions, thank you so
much~~~
Which of the equations below correctly describes Hubble's law? (d: distance, z: redshift, c: speed of light, Ho: Hubble's constant) Select one: o a. cz = Hod cross out o b. z = H. d cross out c. cz= Ho/d cross out cross out d. dz= Ho C e. c/z = H,/d o cross out Which forces are thought to be unified into a GUT force at high...
As a city planner, you receive complaints from local residents
about the safety of nearby roads and streets. One complaint
concerns a stop sign at the corner of Pine Street and 1st Street.
Residents complain that the speed limit in the area (89 km/h)is too
high to allow vehicles to stop in time. Under normal conditions
this is not a problem, but when fog rolls in visibility can reduce
to only 47 meters. Because fog is a common occurrence in...
As a city planner, you receive complaints from local residents about the safety of nearby roads and streets. One complaint concerns a stop sign at the corner of Pine Street and 1st Street. Residents complain that the speed limit in the area (55 mph) is too high to allow vehicles to stop in time. Under normal conditions this is not a problem, but when fog rolls in visibility can reduce to only 155 ft.155 ft. Since fog is a common...
understanding newton's law 1. An object cannot remain at rest unless which of the following holds? a. The net force acting on it is zero. b. The net force acting on it is constant and nonzero. c. There are no forces at all acting on it. d. There is only one force acting on it. which one is the answer? there can be more than one answer.... 2. If a block is moving to the left at a constant velocity,...
Which of the following types can be safely compared using the == operator? A- string b- float c- double d- Char 2- What will be stored in variable i after the following statement is executed? int i = (int) Math.sqrt(5);
With a near point of 12.0 cm, a nearsighted technician can focus on relatively nearby objects. Yet, with a far point 58.0 cm out, he cannot clearly see distant objects without optical aid. (a) Calculate the focal length (in cm) of a contact lens that would enable this technician to clearly view very distant objects. (Hint: Allow p to approach infinity in the thin-lens equation). (b) What power (in diopters) describes this contact lens? (c) When this contact lens is...
Which household waste can be safely dumped down the drain? A. Motor oil B. Batteries C. Expired medicine D. None of the above