A 1-kg firecracker initially at rest splits into two pieces. Piece #1 has a mass of 25-kg. Piece #2 moves with a velocity of 12 m/s to the right. (A) What is the mass of the second piece? (B) What is the velocity of the first piece?

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.