A 4000 kg truck going 30m/s rear-ends a 1000kg VWbuy going 10m/s. After the collision, the truck is going 29m/s. how fast is the VW going.

Need this now! do pilots live long

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

Could we see a galaxy that is 20 billion light-years away?