1. D, constant
Force must be in the direction of the velocity to change speed.
2. B. to the center of the curvature
This allows the vehicle to complete the turn.
Answer:
Work Done = W
force = F
Distance = d
W = Fd
or W = F*d
W (in joules) = 3.5*4 = 14 Nm (or J)
1Nm = 1J
so newton meters and joules are the same
Power = Work (in joules) /time (in seconds)
i don’t know the time so i can’t solve it
Answer:
-322.64 J
Explanation:
75 N * cos 125 * 7.5 = -322.64 J
Carbon is the answer. IF oxygen were on the list it would also be correct but for this its Carbon<span />
To answer that question, we don't care what the highest and lowest
levels of the wave are, or how far apart they are. We only need to be
able to identify the highest point on the wave, and keep track of how
often those pass by us.
You said it takes 4 seconds for a complete wave to pass by.
Through the sheer power of intellect, I'm able to take that information
and calculate that 1/4 of the wave passes by in 1 second.
There's your frequency . . . 1/4 per second, or 0.25 Hz.
