(15 points) a high-velocity 15-g bullet is shot vertically into a 2-kg block. the block lifts 0.8m straight upward. the bullet penetrates the block and becomes embedded in the block within a time interval of 0.0010 s. what is the velocity of the bullet when it hits the block?

It is really hard for me right know

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.