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Digiron [165]
2 years ago
8

John writes a definition for speed and time. Speed: Speed is the distance an object moves in an amount of time Time: The amount

of time is measured in seconds, minutes, or hours Which statement is correct about John's definitions? (2 points) a Both definitions are incorrect. b Both definitions are correct. c The definition for speed is correct, the definition for time is incorrect. d The definition for time is correct, the definition for speed is incorrect.
Chemistry
2 answers:
babymother [125]2 years ago
7 0

Answer:

A

Explanation:

I might be wrong but I think it's a

daser333 [38]2 years ago
7 0

Answer: Speed: Speed is the distance an object moves in an amount of time. Time: The amount of time is measured in seconds, minutes, or hours.

Explanation: Because the amount of time measured

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Scilla [17]

Answer:

A very powerful one

Explanation:

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Figure 4, Future climate prediction for North America. By 2100, the low-emissions scenario (550 ppm CO2, left) and high-emission
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Las Vegas is expected to recieve less precipitation

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2 years ago
You have a mass of 54 kg and are sitting on a stool. The normal force the stool applies on you is ...
Karo-lina-s [1.5K]

Answer:

529.2 N

Explanation:

As we have studied the first law of motion, which states that every action has some reaction, equal in magnitude but having an opposite direction.

The force that is acting on the student will be due to gravitational force, that is equal to his weight.

                                              F=mg: 54kg x 9.8m/s^2 =529.2 N

So the weight of student is exerting downwards towards the stool and land. The stool will also exert a force on the student that will be equal in magnitude but opposite in direction, then it will be 529.2 N.

This is because the student is sitting in a constant state and all the weight is exerted on the stool.

Note: This answer is very generic supposing that all the weight of the student is on stool. But, if we suppose that student's legs are on floor so it means the force of gravity acting on the stool has become less because student's mass on stool is less. So the answer would be a force somehow less than 529.2 N.  However, since the question asked normal force, it would be weight of student in general terms.

Hope it helps!

7 0
3 years ago
Explain how humans acquire the energy to function.Explain the process of cellular respiration and how we obtain this energy.
Naddika [18.5K]

Answer:

energy = heat = producers = consumer animals =

decomposers = heat

Explanation:

this is the best

7 0
3 years ago
An object has a mass of 5.52 g and a volume of 12 mL. What is the density of the object?
Rudik [331]

Answer:

<h2>Density = 0.46 g/mL</h2>

Explanation:

Density of a substance can be found by using the formula

<h3>Density =  \frac{mass}{volume}</h3>

From the question

mass = 5.52 g

volume = 12 mL

Substitute the values into the above formula and solve for the Density

That's

<h3>Density =  \frac{5.52}{12}</h3>

We have the final answer as

<h3>Density = 0.46 g/mL</h3>

Hope this helps you

4 0
3 years ago
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