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ddd [48]
3 years ago
9

When do we land on Mars ?

Physics
2 answers:
Karo-lina-s [1.5K]3 years ago
6 0

Answer:

2025

Explanation:

The first crew of four astronauts were to land on Mars in 2025. Then, every two years, a new crew of four would arrive.

lorasvet [3.4K]3 years ago
5 0

Answer:

I think like 2024 or 25

Explanation:

Elon musk will probably go

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Which of the following occurs with both a cold front and a mountain breeze?
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Answer:

b warm air rises

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What is terminal velocity and how is it reached?
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3 years ago
Average human body temperature is 98.6°F. What is the equivalent in degrees Celsius?
Gala2k [10]

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3 years ago
A 1500 kg car traveling at 80.0 km/h comes to a screeching halt in a time of 4.00 seconds. Calculate the force of friction exper
amm1812

Answer:

F=m x a

(F is force ,M is mass and A is acceleration)

in thisncase the Mass is given but we need to find ou the acceleration

Formula for acceleration-

a=(v - u)/t

(v is final velocity , u is initiatal velocity and t is time)

a = (0 - 80)/4

a= -80/4

a= -20

By substituting the values-

F= m x a

F= 1500 x -20

F=-30000N

Thus the force acted is -30000N

hope this helps

7 0
3 years ago
A ___ force is not path-dependent and does not change the overall mechanical energy of an object.​
finlep [7]

Answer:

conservative

Explanation:

Nonconservative force is the force that depends on a path, however conservative does not depend on a path and it is not associated with the potential energy. When the work is done by an unconservative force, mechanical energy is added or removed. Friction is the best example for a non-conservative force. When these non-conservative forces are acting, the mechanical energy changes but these are not preserved.

hope this helped!

6 0
3 years ago
Read 2 more answers
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