As you watch the flood in progress, you can watch cars float away one-by-one. I hope that this gives you pause before you yourself consider driving across a flooded roadway. The topic here is how much running water does it take to make a SUV (sport utility vehicle) or pick-up truck to float away. Water weights 62.4 pounds per cubic foot. Given typical velocities of water running across sloped roadways, for each foot the water rises, about 500 pounds of lateral force is applied and the a typical vehicle volume displaces about 1500 pounds of water. This means that the car weights 1500 pounds less for each foot the water rises. A typical pickup truck weighs about 5000 pounds, while a Suburban weights about 5500 pounds. A car like a Civic weighs about 3000 pounds. QUESTION: what is the height of water needed to float a Civic (divide the weight by 1500)

Ahot-air balloon is drifting straight downward with a constant speed of 2.40 m/s. when the balloon is 7.63 m above the ground, the balloonist decides to drop one of the ballast sandbags to the ground below. how much time elapses before the sandbag hits the ground?

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

What quantity do units represent in value