a ballistic galvanometer, connected to a search coil for measuring flux density in a core, give a throw of 100 scale division on reversal of flux. The galvanometer coil has a resistance of 180 ohm. The galvanometer constant is 100 micro columns per division. The search coil has an area of 50 centimeters square, wound with 1000turns having a resistance of 20ohms. calculate the flux density in the core ​

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

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

the answer should be in the picture.