Aminiature spring-loaded, radio-controlled gun is mounted on an air puck. the gun's bullet has a mass of 7.00 g, and the gun and puck have a combined mass of 150 g. with the system initially at rest, the radio controlled trigger releases the bullet causing the puck and empty gun to move with a speed of 0.530 m/s. what is the bullet's speed?

Explanation:

Given

mass of bullet

mass of gun and Puck

speed of gun and Puck is

Let speed of bullet be u

conserving Momentum

initial momentum=Final Momentum

negative sign indicates that bullet is moving in opposite direction        

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is