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
umka2103 [35]
2 years ago
8

galatics years. the time the solar system takes to circle around the center of mily way galaxy a galatic year is about 230

Physics
1 answer:
IRINA_888 [86]2 years ago
5 0

Based on the time that the solar system takes to circle the center of the milky way, the length of time that the Tyrannosaurus rex dinosaurs lived is  0.291 galactic years ago.

<h3>How long ago did the Tyrannosaurus rex live?</h3>

The Tyrannosaurus rex lived 67 million years ago.

If a single galactic year is 230 million years then the Tyrannosaurus rex lived:

= Number of years ago  Tyrannosaurus rex lived / Number of years in galactic years

Solving gives:

= 67 / 230

= 0.291 galactic years ago

Full question is:

Galactic years. The time the Solar System takes to circle around the center of the Milky Way galaxy, a galactic year, is about 230My. In galactic years, how long ago did the Tyrannosaurus rex dinosaurs live?

Find out more on galactic years at brainly.com/question/13600471

#SPJ4

You might be interested in
When you go camping, you burn wood. Are you contributing to air pollution?
Jet001 [13]
Yes because of the smoke you are creating in the air
3 0
3 years ago
What is a free electron? Can someone help?
Aleksandr [31]
A free electron is one which has become detached from a covalent bond between two atoms and is able to move around from atom to atom and possibly take part in electric current flow.
3 0
3 years ago
The Heaviside function H is defined by H(t)={0 if t&lt;0, 1 if t≥0 It is used in the study of electric circuits to represent the
Studentka2010 [4]

Answer:

V(t)= 240V* H(t-5)

Explanation:

The heaviside function is defined as:

H(t) =1 \quad t\geq 0\\H(t) =0 \quad t

so we see that the Heaviside function "switches on" whent=0, and remains switched on when t>0

If we want our heaviside function to switch on when t=5, we need the argument to the heaviside function to be 0 when t=5

Thus we define a function f:

f(t) = H(t-5)

The -5 term inside the heaviside function makes sure to displace the function 5 units to the right.

Now we just need to add a scale up factor of 240 V, because thats the voltage applied after the heaviside function switches on. (H(t-5) =1 when t\geq 5, so it becomes just a 1, which we can safely ignore.)

Therefore our final result is:

V(t)= 240V* H(t-5)

I have made a sketch for you, and added it as attachment.  

5 0
3 years ago
I need help on both questions
iris [78.8K]
It's not in motion when the line straight and flat . there's #9
3 0
3 years ago
Read 2 more answers
What pollutant forms when automobile emissions react with oxygen gas and ultraviolet rays?
creativ13 [48]

Ozone is a molecule that consists of three oxygen atoms. When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen. A freed oxygen atom then combines with another oxygen molecule to form a molecule of ozone.  Hydrocarbons and nitrogen oxides come from great variety of industrial and combustion processes. Motor vehicle exhaust and industrial emissions, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC that acts as a precursor of ozone. In urban areas, the number of automobiles are more and therefore, more production of such harmful gases. These gases in presence of sunlight leads to the formation of bad ozone.

6 0
3 years ago
Other questions:
  • To get the whole circle, you run t from 0 to 2 π. Use this information to confirm that the circumference of a circle of radius r
    7·1 answer
  • A glass lying on table doesn't possess friction.why?
    13·1 answer
  • An ac generator consists of a coil with 40 turns of wire, each with an area of 0.06 m2 . The coil rotates in a uniform magnetic
    14·1 answer
  • A delivery truck leaves a warehouse and travels 2.60 km north. The truck makes a left turn and travels 1.25 km west before makin
    6·1 answer
  • A 0.5 kg ball travelling at a velocity of 1 m/s collides with a 1.5 kg ball at rest, calculate the
    8·1 answer
  • What is the contour interval of this map? a. 20 feet b. -20 feet c. 60 feet 11​
    9·1 answer
  • What medium do seismic waves travel through?
    13·1 answer
  • A proton with an initial speed of 8.20×105 m/s is brought to rest by an electric field. Part APart complete Did the proton move
    13·1 answer
  • How fast is a lightning flash?
    7·2 answers
  • An astronaut stands on the surface of an asteroid. The astronaut then jumps such that the astronaut is no longer in contact with
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!