A proton is released from rest in a uniform electric field of magnitude 2.18×105 N/CN/C. Find the speed of the proton after it has traveled (a) 1.90 cmcm and (b) 11.0 cmc.

Phase changes are chemical changes. true or false

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?