two students in a science classroom are debating about whether the tables are made of wood or plastic. as the teacher passes by, she suggests, use cell theory to find the truth. propose a scientific investigation to determine whether the tables are wooden or plastic. Include your hypothesis, what steps the students should take, and any materials they might need to carry out the produce.​

connect the batteries in series and hope

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

the rearrangement of particles in a physical change. hope this