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
Maslowich
3 years ago
15

Mars was once similar to Earth in that

Physics
1 answer:
Nataly_w [17]3 years ago
6 0
B. liquid water flowed on its surface
You might be interested in
Please help I'll mark brainliest!!!!
madam [21]

This question is based on the fundamental assumption of  vector direction.

A vector is  a physical quantity which has  magnitude as well direction  for its complete specification.

The magnitude of a physical quantity is simply a  numerical number .Hence it can not be negative.

A negative vector is a vector which comes into existence when it is opposite to our assumed direction with respect to any other vector.  For instance, the vector is taken positive if it is along + X axis and negative if it is along - X axis.

As per the first option it is given that a vector is negative if its magnitude is greater than 1. It is not correct as magnitude play no role in it.

The second option tells that the magnitude of the vector is less than 1. Magnitude can not be negative. So this is also wrong.

Third one tells that a vector is negative if its displacement is along north. It does not give any detail information about the negativity of a vector.

In a general sense we assume that vertically downward motion  is negative and vertically upward is positive. In case of a falling object the motion is  vertically downward. So the velocity of that object is negative .

So last   option is  partially  correct  as  the vector can be negative depending on our choice of co-ordinate system.





7 0
3 years ago
Read 2 more answers
Explain what the star looks like to Jane
S_A_V [24]
The star looks like a desirable hunk of masculinity to Jane. But to John, the star looks like a wimpy momma's boy who might compete with him for Jane's attention. Jane and John have different impressions of the star because of their gender-specific instincts that have evolved during thousands of millenia of human evolution.
7 0
3 years ago
Read 2 more answers
What is artificial intelligence
PilotLPTM [1.2K]

the theory and development of computer systems able to perform tasks that normally require human intelligence, such as visual perception, speech recognition, decision-making, and translation between languages.
8 0
3 years ago
Read 2 more answers
Freeeee pointsssssss. i hope yall have a good as well!! Also, whats something you regret doing most?
leonid [27]

Answer:POGGERS thx i rl needed this have a good day also something a regret the most is searching up henhai i am now addicted

6 0
3 years ago
Read 2 more answers
Describe the steps used by conventional sewage treatment plants to break down our sewage into a relatively safe effluent that ge
anyanavicka [17]

Answer:

the soild material is allowe to settle into a sludge layer the remaining waste water undergoes a secondart treatment that uses bacteria to break down organic matter

treat water is left to sit while particles settle out, with settle d particles being added to sluudge,

water is disinfeted

Explanation:

5 0
3 years ago
Other questions:
  • A "synchronous" satellite is put in orbit about a planet to always remain above the same point on the planet’s equator. The plan
    10·1 answer
  • A certain shade of blue has a frequency of 7.24 × 1014 Hz. What is the energy of exactly one photon of this light?
    12·2 answers
  • Suppose you wanted to be able to see astronauts on the moon. What is the smallest diameter of the objective lens required to res
    6·1 answer
  • 1. The maximum running speed (S) in km/hr and the corresponding body mass (m) in kg were
    6·1 answer
  • A fault in which the hanging wall moves down relative to the footwall is a _____.
    7·2 answers
  • If the mass of each object is the same, 18 g, which object will have the largest density? *
    11·1 answer
  • Describe the forces involved in Throwing a spear
    12·1 answer
  • An open train car rolls along a track while it is being filled with sand. There is negligible friction. As a result of
    5·1 answer
  • 33. What steps can you take to minimize your risks from air pollution?
    14·1 answer
  • 3. What is the gravitational force between a 70 kg physics student and her 1 kg textbook, at a distance of 1 meter? (This number
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!