what is the final momentum of a body if it starts from rest and a constant force of 20N is applied to it for 4 second?​

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

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?

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?