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Rudiy27
3 years ago
5

When the velocity of a body increase with time, it's acceleration is ---------

Physics
1 answer:
BabaBlast [244]3 years ago
4 0

Answer:

Negative

Explanation:

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lina2011 [118]
All it does is lets him pull in a more convenient direction to raise the load. It has no effect on the required force.
4 0
3 years ago
Which of the following describes the relationship between work and power
Pani-rosa [81]

Answer:

Power is the rate which work is done.

Explanation:

<em>Power</em> is the rate which work is done. Power is measured in watts.

<em>Work</em> is the use of force to move an object. Work is measured in joules

7 0
3 years ago
How does wood and plastic relate to forces
WARRIOR [948]

Answer:

There are six kinds of forces that act on objects when they come into contact with one another: Normal force, applied force, frictional force, tension force, spring force and resisting force. These forces make objects change their motion or movement , the act of going from one place to another.

6 0
3 years ago
What is the momentum of a car with a mass of 1,300 kg traveling at a speed of 28 m/s?
Vlad1618 [11]

Answer:

<h3>The answer is 36,400 kgm/s</h3>

Explanation:

The momentum of an object can be found by using the formula

<h3>momentum = mass × velocity</h3>

From the question

mass = 1,300 kg

speed / velocity = 28 m/s

We have

momentum = 1,300 × 28

We have the final answer as

<h3>36,400 kgm/s</h3>

Hope this helps you

7 0
3 years ago
2NaOH+H2SO4 Na2SO4+H2O the equation is balanced/unbalanced because the number of hydrogen atoms and oxygen/sodium is equal/not e
RUDIKE [14]
Your equation is:
2NaOH + H_{2}SO_{4}  ==\ \textgreater \  Na_{2}SO_{4} + H_{2}O

An equation is balanced only if there are the same number of atoms of each element on both sides of the arrow - aka same number of atoms of each element in both reactants (left of the arrow) and products (right of the arrow). 

It'll be easiest to tackle this by counting up the number of atoms of each element on the left and on the right and comparing those numbers. If there is a number in front of the entire compound, that means that number applies to all elements in the compound. If the number is a subscript (little number to the right of the element), that means that number only applies to the element that the subscript is attached to:
1) On the left, you have:
2NaOH + H_{2}SO_{4}\\&#10;\\&#10;Na:  \: 2 \: atoms\\&#10;O: \: 2 + 4 = 6 \: atoms\\&#10;H: \: 2 + 2 = 4 \: atoms\\&#10;S:  \: 1 \: atom

2) On the right, you have:
Na_{2}SO_{4} + H_{2}O\\&#10;\\ &#10;Na: \: 2 \: atoms\\ &#10;O: \: 4 + 1 = 5 \: atoms\\ &#10;H: \: 2 \: atoms\\ &#10;S: \: 1 \: atom

You can see that the number of oxygen and hydrogen atoms aren't equal on both the left (reactants) and the right (products), so the equation is unbalanced.

Your final answer is "T<span>he equation is unbalanced because the number of hydrogen atoms and oxygen is not equal in the reactants and in the products."</span>


5 0
3 years ago
Read 2 more answers
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