Answer:
C. unbalanced force
Explanation:
it is called unbalanced force because it has changed direction of the moving object
Answer:A
Explanation:
Explanation:
Given that,
Gravitational force = 600 N
Frictional force = 25 N
Pulled by the Force = 250 N
We know that,
The gravitational force in downward and normal force act in upward. the frictional force in left side and the box pulled by the force to the right side.
The balance equation is along y-axis
The box will not move in y-axis therefore, the net force in the y-axis will be zero.
Hence, The net force in the y-direction will be zero.
Answer:
10573375000

Explanation:
k = Coulomb constant = 
r = Distance = 
E = Electric field = 1150 N/C
Electric field is given by

Number of electrons is given by

Number of excess electrons is 10573375000
r = 0.115+0.15 = 0.265 m

The electric field is 
The Answer is B. Isotopes
Answer: 5.5m/s
Explanation:
vf=vi+at
vf= 4.0m/s + (0.50m/s^2)(3.0s)