Urgent due in half an hour: you are in the middle of a large field. you walk in a straight line for 100m, then turn left and walk 100m more in start line before stopping. when you stop, you are 100m from the starting point. by how many degrees did you turn? a) 90b) 120c) 30d) 180e) this is impossible. you cannot walk 200m and be the only 100m away from where you started.

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

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