What causes the force that moves a boat forward when someone rows it? a. the force is caused by the rower's arms. b. the force is caused by an interaction between the oars and gravity. c. the force is caused by an interaction between the oars and the water the boat is traveling in. d. the force is caused by friction?

The answer is letter d. According to Newton’s first law, an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Putting this concept in our problem, the boat will just stay put unless a force is applied to it and once it’s in motion, it will stay in motion because of friction unless a force is applied to it to stop.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.