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Bezzdna [24]
3 years ago
6

Why is a block of gold is more dense than a block of iron of equal size?

Physics
1 answer:
baherus [9]3 years ago
6 0
Gold has almost 4 times the atomic weight of iron. Check the table of elements.D<span>ensity is Mass divided by its volume, right? Gold has a higher atomic weight than iron, so it will be much heavier.</span>
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: Does increasing temperature increase pressure?
Vesnalui [34]
Yes, an increase in temperature is accompanied by an increase in pressure. Temperature is the measurement of heat present and more heat means more energy. Molecules in hotter temperatures move faster and more often, eventually moving into the gaseous phase. The molecules would fill the container, and the hotter it got the more they would bounce off the walls, pushing outward, increasing the pressure.
I suppose you could measure this with some kind of loosely inflated balloon and subject it to different temperatures and then somehow measure the size/pressure of it.
5 0
3 years ago
A bucket filled woth water seems light while it sinks into water.Also show their relation using formula
slavikrds [6]

Answer: This phenomenon happens due to upthrust exerted by water.

Explanation:

We know that,

Liquid Pressure is directly proportional to the height of the vertical column in the liquid.(P∝h)

When a bucket filled water is sunk into the water container, there occur difference in the pressure in top and bottom of the water container. Due to this, water exerts an upward force on the bucket filled with water. This is called Uprthrust.

Upthrust on the bucket makes the bucket filled with water lose some of it's weight and causes apparent loss in weight.

Hence, the bucket filled with water seems light while it sinks into water.

6 0
3 years ago
How much work do you do when you lift a 100 N child 0.5 m?
Papessa [141]

Answer:

<h2>50 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 100 × 0.5

We have the final answer as

<h3>50 J</h3>

Hope this helps you

8 0
2 years ago
A Cannon makes a noise, and it's echo is heard 4.5 seconds later. if sound travels at 343 m/s:
kramer

a).  (343 m/s) x (4.5 sec)  =  1,543.5 meters

b).  The surface it reflected from is  (1543.5 / 2) = 771.75 meters away.

     The sound had to go there AND come back before you heard the echo.
7 0
3 years ago
In the sentence "The speed of an object can vary," what does the word vary mean?
xenn [34]
Vary means very many 

4 0
3 years ago
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