Now let's focus on the descending sphere. let m be the mass of the sphere, g be the acceleration due to gravity, t be the magnitude of the force of tension of the string, a be the acceleration of the sphere as it descends, and α be the angular acceleration of the wheel. what is the correct expression for newton's second law applied to the descending sphere? a. mg+t = ma
b. mg+t = mα
c. mg-t = ma
d. mg-t = mα
e. -mg+t = ma
f. mg-tr = ma
g. mg+tr = ma

the higher the current the higher the mag field around it the higher the influence on the compass

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

this could be newton#'s law of cooling. the cooling curve is exponential

answer; how far out of place which the object finished relative to the starting location;