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3 years ago

Why does liquid water boil away when exposed to the Martian atmosphere?

Physics

1 answer:

Studentka2010 [4]3 years ago

6 0

Answer: d. the low air pressure lowers the boiling point

Explanation:

Note that there cannot be less than 6.1 millibars of liquid water. This fact is important because the Martian surface atmospheric pressure hovers just below that value. Any water that could form from melting water on a warm afternoon will easily vanish into the desiccated Martian atmosphere.

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Select the correct answer. The motion of a car on a position-time graph is represented with a horizontal line. What does this in

enyata [817]

If the car's motion appears as a horizontal line on a position-time graph, it shows that as time changes, the car's position doesn't change.

This is just a complicated way to say that the car is not moving. (A)

7 0

3 years ago

The graph below represents the motion of four cars, labeled W, X, Y, and Z.

ycow [4]

Answer:

Answer is A

Explanation:

As we know , for constant velocity we get a straight line.

The formula for this problem is s = vt which is similar to a straight line formula like y = mx + c.

If we put here c = 0 we get the formula for distance and velocity.

So the answer is A.

6 0

3 years ago

PLEASE HURRY, WILL GIVE BRAINLIEST!!!

Brilliant_brown [7]

Answer:

1. Convection (Moving Water)

2. Radiation (Sunlight)

3. Conduction (Direct Contact)

4. Convection or Radiation (Most Likely Convection) (Moving Air/Sunlight)

5. Convection (Moving Air)

6. Radiation (Feeling Heat)

Explanation:

See Above

3 0

2 years ago

A scooter is accelerated from rest at the rate of 8m/s . How long will it take to cover a distance of 32m?

TiliK225 [7]

Speed = 8 m/s
Distance = 32 m

We need to find time

$\begin{gathered} {\underline{\boxed{ \rm {\red{Speed \: = \: \frac{Distance}{Time} }}}}}\end{gathered}$

$\begin{gathered} {\underline{\boxed{ \rm {\orange{Time \: = \: \frac{Distance}{Speed} }}}}}\end{gathered}$

<h3>Substuting the values</h3>

$\begin{cases} \large\rm{\purple{ {\leadsto} }} \: \: Time \: = \: \frac{32}{8} \\ \\ \large\rm{\purple{ {\leadsto} }} \: \: Time \: = \: \cancel\frac{32}{8} \\ \\ \large\rm{\purple{ {\leadsto} }} \: \: Time \: = \: 4 \: seconds \end{cases}$

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2 years ago

A sound wave has a frequency of 510 Hz in air. Which of these is closest to the wavelength of this sound? (The speed of sound in

Dahasolnce [82]

Answer:

b) the length of car

Explanation:

This is because 520 divided by 343 m/s.) would equal the length of a car.

8 0

3 years ago