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natali 33 [55]
3 years ago
12

How old are spiral galaxies? I WILL MAKE YOU BRAINLIEST, 5 STARS, AND THANKS! PLEASE ASAP

Physics
2 answers:
kondor19780726 [428]3 years ago
7 0

Answer:

Hi there!

The answer is eleven billion years old.

Nimfa-mama [501]3 years ago
5 0

Answer:

11 billion years old

Explanation:

Because elliptical galaxies contain older stars and less gas, scientists think that they are nearing the end of the evolutionary line for galaxies.

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What is the relationship between height of high tide and height of low tide for any location? ( Small answer please :) ! )
Lera25 [3.4K]

Answer:

Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun. They originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface. When the highest part or crest of the wave reaches a particular location, high tide occurs; low tide corresponds to the lowest part of the wave, or its trough. The difference in height between the high tide and the low tide is called the tidal range. Tidal range is the height difference between high tide and low tide.

7 0
3 years ago
Sally travels by car from one city to another. She drives for 30 min at 80 km/hr, 12.0 min at 105 km/hr, and 45 min at 40.0 km/h
Anna [14]

Given :

Sally travels by car from one city to another. She drives for 30 min at 80 km/hr, 12.0 min at 105 km/hr, and 45 min at 40.0 km/hr.

To Find :

The total distance traveled.

Solution :

Total distance traveled is given as sum :

Distance = sum of  product of speed and time

D = (v₁ × t₁) + (v₂ × t₂) + (v₃ × t₃)

Putting all given value in this we get :

D = 80\times \dfrac{30}{60} + 105 \times \dfrac{12}{60} + 40\times \dfrac{45}{60}\\\\D = 91\ km

Hence, this is the required solution.

6 0
3 years ago
What is atmospheric pressure and what are the diffetent units?
Burka [1]
Atsmopheric pressure is the pressure that is on something inside and atmosphere. measured in either mmhg or milimeters of Mercury, or atmospheres abreviated atm.
6 0
3 years ago
0.75 km expressed in centimeters
Rufina [12.5K]
0.75 kilometer= 75000 centimeters
6 0
3 years ago
Read 2 more answers
This illustration from an old textbook shows some of the over 150 different dog breeds that can be seen around the world today.
ANEK [815]
The answer is most likely cross-breeding. As science expanded and the desire for better breeds of animals grew, many different animals were bred with their own species (not exactly the same, but the different animals were bred, same species).
7 0
4 years ago
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