A 0.600 m long solenoid has a current that changes with time according to I space equals space 0.050 space t squared space plus space 0.075, where I is in Amperes and t is in seconds. The solenoid’s radius is 12.0 cm and it has 1500 turns. A circular loop of radius 8.00 cm is placed inside the solenoid such that its center is on the axis of the solenoid and its plane makes an angle of 30 degrees with the axis. What is the induced current in the loop at t = 3.00 s if the loop has a resistance of 6.00 Ω?

a small object of mass 3.66 g and charge -17.6 µc is suspended motionless above the ground when immersed in a uniform electric field perpendicular to the ground. what are the magnitude and direction of the electric field?

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

god i hope this !