if there were no invention of machines then life would have been more difficult and simple works could be hard to do. Even now we are using our phones, sitting in a AC room interacting to eachother from different places. without the invention of machines simple things like transportation would have been difficult. There would be horses and donkey for the transportation. There would be no electricity,no internet, no transportation, not even c computers or mobile etc. The market for business will be smaller, the knowledge and news about world would be less.
so the problem would have been bigger than we can imagine. But one thing is that nature could survive lot more compared to what we have done till now by destroying nature.
<em>≈ 0.26 cm³</em>
<em>Hi there !</em>
<em>Gold is a metal with a very high density.</em>
<em>The density of gold is higher than that of lead.</em>
<em>Density(gold) = 19300 kg/m³ = 19.3 g/cm³</em>
<em />
<em>19.3 g ............ 1 cm³</em>
<em>5 g ..................x cm³</em>
<em>x = 5g×1cm³/19.3g = 0.2590 cm³ ≈ 0.26 cm³</em>
<em>Good luck ! </em>
Answer:
Your moving vehicle has kinetic energy; as you increase your vehicle's speed, your vehicle's kinetic energy increases. The greater your vehicle's kinetic energy, the greater the effort that will be required to stop the vehicle.
Explanation:
I hope this explained up above. Have a great dayyyy:)
Construction lines should not be erased, because construction lines serve as a guide for you and for your drawing. Construction lines are used as references in positioning objects or other lines in your work. Construction lines must be easily seen and easy to be erased.
Answer:
Weight of air per unit area is pressure due to atmosphere. So here correct answer is Weight
Explanation:
As we know that air pressure is given by
now we know that force here due to air is due to the weight of the air
so here in order to calculate the weight we will have
here we know that
Ah = volume of air above the point where pressure is to be calculated
now from above formula we have
so here we can say that pressure is due to weight of air
