Will mark brainiest if you can help me it's due today and I really need help on this, please. Review Questions
What are stars made from?
Why do stars appear to move across the sky?
What are sky maps? How are they made?
How does a star's appearance change based on the elements inside it?
How were the Spitzer telescope pictures important to understanding stars?
Critical Thinking Questions
How does the life cycle of a star compare to that of a human?
What is the likelihood that black holes exist in our galaxy? Explain your response.
How do massive stars change the atmosphere?
How are constellations an important part of history?
What is nuclear fusion? Why is this process important to stars?

Sorry i don’t know what to do

    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

Physical science b final exam bernoulli’smovepowercompound translucent the sun i was having such a pain for this searching every question so i hope i made someone happy