Answer:
Friction
Explanation:
Friction can be simply defined as the force that creates resistance to any motion of a particular object that moves relative to another object. It occurs because of the electromagnetic force of attraction that is generated by the charged particles located between the two distinct contacting surfaces. It is a non-fundamental force.
This type of force is mainly responsible for the resisting of sliding and/or rolling of an object over the other one.
Answer:
steel because being alloy in metal it has free electrons in metals
Answer:
1. Primary or P waves are push and pull waves
2. Secondary, S or Shear Waves are also called transverse wave
3. L or surface waves reach the earth's surface after P and S waves
Answer:
- 1100 J heat flows out
Explanation:
dW = - 1600 J (as work is done on the gas)
dU = 500 J
dQ = ?
According to the first law of thermodynamics
dQ = dU + dW
dQ = 500 - 1600
dQ = - 1100 J
As heat is negative so it flows out.
Answer:
The energy would remain equal to that of the initial kinetic energy since it is a frictionless surface. However if it is an inelastic collision then energy would be lost due to sound and heat.
Explanation:
