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11111nata11111 [884]
4 years ago
12

Define ideal machine its types and example of each three?​

Physics
1 answer:
antoniya [11.8K]4 years ago
6 0

Explanation:

Hey, there!!

Ideal machines are defined as the machines which gives 100% (efficiency) output result without losing the input work. There is possibility have a machine with 100% efficiency but the machines like pulley and lever are somehow.

  • For reason for pulley is when it is rotated up to 360° it takes the the load to the desired height. so, it is considered as ideal machine.
  • For lever it amplifies tge the input work to produce output work.

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Answer:

Convert the units to standard units.

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The KE at the bottom of the hill = the PE at the top.

1/2 I w^2 + 1/2 m v^2 = mgh

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Now we need to relate w with v

v = w x r

w = v / r put this result in for w

1/2 (2/3 x mxr^2 z v^2 / r^2) + 1/2 m x v^2 = mgh

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1/3 m x v^2 + 1/2 mv^2 = mgh

5/6 m x v^2 = mgh Notice that the m's are all the same on both sides. They cancel.

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7 0
3 years ago
Suppose the line on a distance-versus-time graph and the line on a speed-versus-time graph are both slanted straight lines going
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4 0
4 years ago
Before radiant energy can be converted to thermal energy,it must be changed to what​
vivado [14]

<u>Answer</u>:

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Thermal energy is the kinetic energy of moving particles. The thermal energy increases with increase in movement and number of moving particles. When the atoms make a transition from electronically excited state to vibrational state, the energy transfer increases the temperature of the substance. This is felt as thermal energy. Hence, the radiant energy is changed into "electronic energy" before it is converted into "thermal energy".

5 0
4 years ago
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kenny6666 [7]

Answer:

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8 0
4 years ago
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