It is the distance between two corresponding points of back-to-back cycles of a wave
- Two 3.0g bullets are fired with speeds of 40.0 m/s and 80.0 m/s, respectively.
- Mass of the 1st bullet (m1) = 3 g = 0.003 Kg
- Mass of the 2nd bullet (m2) = 3 g = 0.003 Kg
- Velocity of the 1st bullet (v1) = 40 m/s
- Velocity of the 2nd bullet (v2) = 80 m/s
- We know, kinetic energy of a body
- Kinetic energy of the 1st bullet
- Kinetic energy of the 2nd bullet
- So, the 2nd bullet which has greater velocity has more kinetic energy.
- Therefore, the ratio of their kinetic energies
<u>Answer:</u>
The kinetic energies of the bullets are 2.4 J and 9.6 J.
The bullet having greater velocity has more kinetic energy.
The ratio of their kinetic energies is 1 : 4.
Hope you could get an idea from here
Doubt clarification - use comment section.
Electric Heating systems use electricity as a source of heat.
<u>Explanation:
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Each heater consists of an electric resistor, which the heating element in it. The process involved is Joule Heating. It is the phenomenon in which, passage of electric current produces heat. Heat is generated when the electrons from the current and the positive ions of the conductor start interaction.
The presence of voltage difference makes an electric fields, which in turn accelerates the charges present in the conductors. When they collide with ions of conductor, heat gets generated, and emitted out, which we use for heating purposes.
Colored sparks and rusting.
Answer:
A. something pushes or pulls it to stop.
Explanation:
Newtons first law. hope this helps