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        

what best describes physical development during adolescence is the development of secondary sex characteristics happens at a rate unique to each individual.

answer: d. a cme increases the amount of energy in the solar wind

explanation:

coronal mass ejections, also called cmes, are large clouds of plasma and magnetic field that erupt from the sun. only when the cloud is aimed at earth will the cme hit earth and therefore cause impacts. high-speed solar wind streams come from areas on the sun known as coronal holes.