Abumper car with a mass of 200 kilograms traveling at a velocity of 3.5 meters/second collides with a stationary bumper car with a mass of 250 kilograms. if the two bumper cars stick and move together at a velocity of 2.3 meters/second, what is the kinetic energy of the system after the collision? 4.5 × 102 joules 6.0 × 102 joules 8.7 × 102 joules 1.2 × 103 joules

Mars has a surface gravity that is only 0.38 (a little over one-third) that of earth's. thus, the weight of an object will also be 0.38 times that of earth. what is the g. p.e. of a climber who weighs 675 newtons on earth at the top of 26,000-meter olympus mons?

What is a system where wealth and property are privately held and profit is the goal rather than providing for collective needs? a. capitalism b. socialism c. communism d. feudalism

Hello i’m a florida 16 year old female, turning 17 in august and my boyfriend in 17 turning 18 in august as well a couple weeks before my birthday. it’s currently june 3rd, i told my mom today that i am dating him. we’ve been dating for about 5 months. i told her out of respect because i didn’t want to hide anything anymore. she said that he will not be welcome in our home, she does not want to meet him or his parents, she will get police involved if she has to to make sure he stays away from me. if she does get police involved will he get in trouble and did i do anything wrong? i’m familiar with the romeo and juliet law and don’t think we’ll get in trouble but i need reassurance.