1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mars2501 [29]
3 years ago
7

What do astronomers use to calculate the age of the universe

Physics
2 answers:
kykrilka [37]3 years ago
6 0

The age of the oldest stars ,

Patterns of background radiation ,

How fast distant galaxies are moving away from us.

rodikova [14]3 years ago
5 0

Answer:

The age of the universe is approximately 13.77 billion years. This age is calculated by measuring the distances and radial velocities of other galaxies, most of which are flying away from our own at speeds proportional to their distances.Explanation:

You might be interested in
Is the strange solid/liquid changing behavior of Oobleck the SAME as an ice cube melting?
Dmitrij [34]
I don’t think so because an ice cube melting needs heat and relies on temp while ooblecks transition from solid to quickly depends on force and speed
6 0
3 years ago
Suppose that an electric charge is produced on one part of a body. If the charge spreads through the entire body, the body is mo
timurjin [86]
C metal. most metals are a conductor which an electric current is attracted to.
8 0
3 years ago
Read 2 more answers
Falling objects drop with an average acceleration of 9.8 m/s2. An arrow is shot with a velocity of 11.76 m/s straight down from
In-s [12.5K]

Answer:

3.8 secs

Explanation:

Parameters given:

Acceleration due to gravity, g = 9.8 m/s^2

Initial velocity, u = 11.76 m/s

Final velocity, v = 49 m/s

Using one of Newton's equations of linear motion, we have that:

v = u + gt

where t = time of flight of arrow

The sign is positive because the arrow is moving downward, in the same direction as gravitational force.

Therefore:

49 = 11.76 + 9.8*t\\\\\\\49 - 11.76 = 9.8t\\\\=> 9.8t = 37.24\\\\\\t = \frac{37.24}{9.8} \\\\\\t = 3.8 secs

The arrow was in flight for 3.8 secs

6 0
4 years ago
Nick added five yards to the maximum distance that he can throw a football which component has he most likely added to his train
aleksandr82 [10.1K]

I believe the answer is: C.)weight lifting twice a week

Weight lifting increase the muscle composition in your body. When you have higher muscle composition, your body would be able to generate more power which might resulted an increase in throwing distance.

Running every day would only increase endurance and stretching is only benefited to increase flexibility and prevent injuries.

6 0
3 years ago
Blue light has a typical frequency of 6.67 x 10 14 1014 Hz. What is the wavelength associated with this frequency?
DerKrebs [107]
First recall the equation that relates frequency to wavelength:

v = fw

Note that the v is the speed of light, a constant. Now plug in the information we know!

(3×10^8) = (6.67 × 10^14) w

Hit the numbers on the calculator and you'll get the wavelength, w. If you comment your answer I'll check it for you. :)

5 0
4 years ago
Read 2 more answers
Other questions:
  • A 60 kg block slides along the top of a 100 kg block with an acceleration of 2.0 m/s2 when a horizontal force F of 340 N is appl
    15·1 answer
  • A point charge +Q is located on the x axis at x = a, and a second point charge –Q is located on the x axis at x = –a. A Gaussian
    12·1 answer
  • Steel blocks A and B, which have equal masses, are at TA = 300 oC and T8 = 400 oC. Block C, with mc - 2mA, is at TC = 350 oC. Bl
    13·1 answer
  • In the context of the auditory system, the _____ was developed to overcome the limitations of the frequency theory.
    5·2 answers
  • What is the time constant for the discharge of the capacitor? express your answer with the appropriate units?
    5·1 answer
  • Two grapes are given equal charges and held apart at a distance of 1.3 m. They experience a repulsive force of 2.2 N. Find the m
    10·1 answer
  • If two pendula have the same length but one has a 2 pound weight on its end while the other has only a 1 pound weight which will
    7·1 answer
  • A convex mirror has a focal length of -10.8 cm. An object is placed 32.7 cm from the mirror's surface. Determine the image dista
    7·1 answer
  • A 1200 kg car moves due north with a speed of 15m/s. An identical car moves due east with the same speed of 15m/s what are the d
    12·1 answer
  • Using a material that is ‘Ohmic’ (it follows Ohm’s Law), you make a circuit using wire, a battery, and a resistor. After measuri
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!