PLEASE HELP 1. Explain how UY Scuti and J0523 are different.

2. Why will J1311 (the Black Widow Pulsar) eventually find itself without its companion star? How will this happen?

3. How did scientists determine SM0313 is the oldest star ever discovered?

4. What characteristics of HV2112 make it the best candidate to be classified as a Thorne-Zytkow object?

1. How does a star's mass determine its lifespan?

2. Discuss the characteristics of cool red dwarf stars, including their mass and age.

3. Discuss the correlation or connection between stars with a higher mass and the amount of fuel they have to work with.

4. How old is the sun and since it's birth, how has the sun changed?

5. During its lifespan, what characteristics of the sun will change?

    m₁v₁ + m₂v₂ = (m₁ + m₂)vmomentum is conserved.the left-hand side of the equation represents the momentum in the system before the collision.the right-hand side represents the momentum in the system after the collisionm₁ and v₁ represents the mass and the velocity of the physics blockm₂ and v₂ represents the mass and velocity of the ball of puttyv represents the final velocity of the combined mass.the question states the two masses stick together. they combined mass has its own velocity with the body mass the sum of the two objects' massestheir combined momentum is (m₁ + m₂)vto find the magitude of (m₁ + m₂)v, we need to add the vectors on the left-hand side of the equation: m₁v₁ + m₂v₂.note the diagram. i have positioned the vectors in accordance with their directions.the magnitude of the resultant can be calculated using the pythagorean theorem since this is a right triangle situation (north and west are perpendicular)|(m₁ + m₂)v| =  √[ (m₁v₁)² + (m₂v₂)² ]|(m₁ + m₂)v| =  √[ (1.5kg·8.0m/s)² + (0.40kg·20m/s)² ]|(m₁ + m₂)v| =  14.4 kg m/sfor two significant figures (assuming that 20m/s is two), this rounds to 14 kg m/s

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Newton's first law describes something special that results from the sum of all the external forces (including gravity) on an object.