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liraira [26]
3 years ago
15

Keeping in mind that not all flasks are vacuum, Please help me explain how other flasks prevent heat loss?​

Physics
1 answer:
lidiya [134]3 years ago
4 0
The silver coating on the inner bottle prevents heat transfer by radiation, and the vacuum between its double wall prevents heat moving by convection. The thinness of the glass walls stops heat entering or leaving the flask by conduction.
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Small-plane pilots regularly compete in "message drop" competitions, dropping heavy weights (for which air resistance can be ign
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plane is flying at an altitude of 70 m

now if an object is dropped from it then time taken by object to drop on ground will be given as

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a steel ball bearing is released from a height hhh and rebounds after hitting a steel plate to a height hhh. what is true about
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In collision of the steel ball and the steel plate, the collision is an inelastic collision and there is loss in the kinetic energy.

<h3>What are collisions?</h3>

Collisions occur when two objects that are moving in the same directions or in different direction meet each other and collide.

There are two types of collisions:

  • elastic collision - the kinetic energy is conserved
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In the collision of the steel ball and the steel plate, there is loss in the kinetic energy of the steel ball which is converted to sound energy.

In conclusion, the collision of the steel and steel plate is an inelastic collision.

Learn more about collisions at: brainly.com/question/7694106

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