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rusak2 [61]
3 years ago
10

Scientists have created an exact scale replica of a rover currently found on Mars and a miniature 3D landscape identical to that

where the rover is currently located. Before sending the rover over the treacherous Martian landscape, they wish to try their model rover first. Which features make this a good model for the scientists to use?
A. It is simplified to leave out details, which makes it easier to understand.
B. It is based on sound scientific principles.
C. It can be used to make predictions.
D. It can be analyzed and shown to be reliable or un-reliable.
Chemistry
1 answer:
igomit [66]3 years ago
3 0

Answer:

D. It can be analyzed and shown to be reliable or un-reliable.

Explanation:

Trying the model out here on earth gives them a chance to observe what it would look like out there.

This will give them the chance to analyze the effectiveness of the rover and see if it can be reliable or not and if necessary adjustments should be made.

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100 points!! Brainliest if correct!!
Misha Larkins [42]

D has the fastest reaction rate because dynamite explodes almost immediately.

A isn't correct because rusting nails take forever to completely rust.

B isn't correct because logs burning can take around 10 to 20 minutes.

C isn't correct because food digestions takes anywhere between 10 minutes to an hour.

3 0
4 years ago
Read 2 more answers
True or False- The parts of a mixture keep their own properties when they are combined.
ICE Princess25 [194]
It is true yes :) happy to help

4 0
3 years ago
In an electrolytic cell, the magnitude of the standard cell potential is the:______
melamori03 [73]

Answer:

a. minimum voltage that must be supplied for a redox reaction to occur

c. always equal to Eanode - Ecathode

Explanation:

In an electrolytic cell;  The electromotive force(the maximum standard potential difference) of the cell formed by the system is defined as the standard electrode potential of the right handed electrode minus the standard electrode potential of the left hand electrode. (i.e \mathbf{E^{\theta}_{cell}=E_{anode} - E_{cathode}} )

As we all known that the process by which chemical energy is being converted to electrical energy is called the Electrochemical cell. It consists of two half cells , an oxidation half cell reaction and a reduction half-cell reaction.The overall redox reaction results in a flow of electrons in an electric current which is produced by a minimum voltage.

Therefore, option a and c are both correct.

6 0
4 years ago
What is the speed of a man walking for 30 meters and he walked for 5 seconds ​
aliya0001 [1]

Answer:

<h2>6 m/s</h2>

Explanation:

The speed of the man can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{30}{5}  \\

We have the final answer as

<h3>6 m/s</h3>

Hope this helps you

8 0
3 years ago
What is the molar mass of citric acid (c6h8o7) and baking soda (nahco3)?
Rufina [12.5K]

The molar mass of citric acid (c6h8o7) is 192.124g/mol

The molar mass of baking soda (nahco3) is 84.007g/mol

The molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample and is measured in moles. Molar mass is a mass property, not a molecular property of a substance.

Molar mass is the mass of 1 mole of the sample. To find the molar mass, add up the atomic masses (atomic weights) of all the atoms in the molecule. Use the masses listed in the periodic table or atomic weight table to determine the atomic mass of each element.

Learn more about molar mass here:brainly.com/question/15476873

#SPJ1

6 0
2 years ago
Read 2 more answers
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