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3 years ago

Need Help with this physics question, just a written response

Physics

1 answer:

Nadusha1986 [10]3 years ago

3 0

Answer:

Explanation:

According to Newton's third law, every action has an equal and opposite reaction

so it tells us that the force exerted by the earth on the spacecraft is equal to the force exerted by the spacecraft on the earth. But we do not see the earth moving towards the spacecraft because the inertia of the spacecraft is very less than the inertia of the earth.

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A object weighing 5 kg, starts to accelerate evenly on a horizontal line. A force moves the object

hammer [34]

Work= force*distance
Work= x*12
Force= mass*acceleration
Force= 5 kg*6
Force= 40 N
Work= 40×12
Work= 480 J (joules)
I think this is it

5 0

4 years ago

Figure 1 shows the kinetic energy as a function of time for a 2kg object that is released from rest and falls toward Earth’s sur

garri49 [273]

<u><em>Answer:</em></u>

The answer is 1400 J, according to my Physics teacher.

<u><em>Explanation:</em></u>

You need to take into account everything that is listed in the question; it's important to remember that the question is asking about the change in gravitational potential energy of the object-object-Earth system from 0s to 10s, not 0s to 20s. :)

7 0

3 years ago

If a vehicle is traveling at constant velocity and then comes to a sudden stop, has it undergone negative acceleration or positi

sertanlavr [38]

Answer:

Negative acceleration

Explanation:

Let us assume a vehicle is moving with a constant velocity u and then it comes to a sudden stop.

The initial velocity of the vehicle is u and finally it comes to rest, it means final velocity is 0.

As we know that,

Acceleration is equal to change in velocity divided by time taken.

$a=\dfrac{v-u}{t}\\\\\text{Put v=0}\\\\a=\dfrac{-u}{t}$

We can see that the value of acceleration is negative. Hence, it leads to negative acceleration.

6 0

3 years ago

Lab: Types of Reactions Assignment: Lab Report

Thepotemich [5.8K]

The types of chemical reactions are as follows:

Combination reactions
Decomposition reactions
Double decomposition
Thermal dissociation
Redox reactions

<h3>What the are the types of reactions?</h3>

Chemical reactions are changes in which new substances are formed.

The types of chemical reactions are as follows:

Combination reactions - these are reactions in which two or more substances combine to form a single compound
Decomposition reactions - these are reactions in which a larger compound splits into smaller substances
Displacement reactions - these are reactions in which one element or radical replaces another in a compound
Double decomposition - these are reactions in which two substances exchange their radicals to form new compounds.
Thermal dissociation - these reactions involves heating compounds to split them into smaller substances.
Redox reactions - these are reactions in which oxidation and reduction reactions occur simultaneously.

In conclusion, chemical reactions produce new substances.

Learn more about chemical reactions at: brainly.com/question/11231920

#SPJ1

9 0

2 years ago

The unit of work in terms of Newton and metre is _______<br>

Anna71 [15]

Answer:

Joule

Explanation:

the unit of work is Joule determined by the letter J.

8 0

3 years ago

Read 2 more answers