Which diagram represents an object in equilibrium? Ο Α.
applied
force = 20 N
force due to
friction = 15 N
B.
applied
force = 20 N
-
force due to
friction = 20 N
Ос.
applied
force = 15 N
force due to
friction = 25 N
D.
applied
force = 30 N
force due to
friction = 20 N
O E.
applied
force = 30 N
force due to
friction = 15 N

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

If forces acting on an object are unbalanced. true or false

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?