It is 1,000kg/m³ i hope this helps you with something
The answer c - Half life how to figure, you first divide it by half then divide than number by half
The same amount of work being done over a long period of time!
Answer:
0.4
Explanation:
F-Fr=ma where F is applied force, Fr is friction, m is mass and a is acceleration.
Since the mass is moving with a constant velocity, there's no acceleration hence
where N is the weight of object and \mu is coefficient of kinetic friction.
the subject
Substituting F for 8 N and N for 20 N
Therefore, coefficient of kinetic friction is 0.4