Independent variable
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation on test performance, sleep deprivation would be the independent variable.
Answer:
A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.
Explanation:
A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.
Given :
Initial speed of car A is 15 m/s and initial speed of car B is zero.
Final speed of car A is zero and final speed of car B is 10 m/s.
To Find :
What fraction of the initial kinetic energy is lost in the collision.
Solution :
Initial kinetic energy is :
Final kinetic energy is :
Now, fraction of initial kinetic energy loss is :
Therefore, fraction of initial kinetic energy loss in the collision is 1.25 .
Answer:
given,
children on left shore pulls the rope by 3 N
Children on the right shore pulls the rope by 2 N
speed of the box = 3 m/s
a) Power = Force x Velocity
Power = 3.0 N * 3
Power = 9 Watt
Power = 2.0 N x 3
Power = 6 Watt
b) Net Force = 3.0 N - 2.0 N = 1.0 N
Net Power = 1.0 x 3 Watt
Net Power = 3 Watt
c) net force is acting on the box and at an instant velocity is given so, when the body moves it will accelerate and velocity will change so, the value of part A and B will also change
