1. F, T, Fw, Fy, or Fy?
Normal force
A surface pushing up
Force of friction
from below.
Weight
Any push or pull.
Applied force
Resists change of
motion.
Tension
Increases with rough
Exerted by a string
surfaces.
or rope.
Always pulls downward.
Caused by gravity.
Is always perpendicular
Is equal throughout.
to a surface.

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90