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leonid [27]
2 years ago
6

Write one use of magnetic force and frictional force

Physics
1 answer:
grandymaker [24]2 years ago
5 0

Answer:

<em>1.Magnetic Force - Used in cranes to separate metal junk from junkyards.</em>

<em>2.Frictional Force- Helps us to walk.</em>

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How much heat is lost by 2.0 grams of water if the temperature drops from 31 °C to 29 °C? The specific heat of water is 4.184 J/
Elanso [62]

Given :

Mass of water, m = 2 grams.

The temperature of water drops from 31 °C to 29 °C .

The specific heat of water is 4.184 J/(g • °C).

To Find :

Amount of heat lost in this process.

Solution :

We know, heat lost is given by :

Heat\ lost,H = ms( T_f - T_i)\\\\H = 2\times 4.184 \times ( 31 - 29 )\ J\\\\H = 16.736\ J

Therefore, amount of heat lost in this process is 16.736 J.

4 0
3 years ago
11)A 1100 kg car travels on a straight highway with a speed of 30 m/s. The driver sees a red light ahead and applies her
cestrela7 [59]

Answer:

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Explanation:

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3 years ago
Which two ways dose inertia affect the monitors of the planets
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Answer:

the inertia provides the tendency to maintain speed and keep moving

7 0
1 year ago
What's the velocity for each trial? <br> And what's the average velocity?
adelina 88 [10]
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5 0
3 years ago
What causes a nucleus to become radioactive?
timurjin [86]

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Explanation:

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