A uniform electric field 208 V/m is directed along the positive y axis. The electric potential at the origin is given to be 0 V. Calculate the electric potential A (0m, 3m), at B(-3m, 0m), and at C(0m, -3m). If an electron starts at the origin, and is moved to A, then to B, and then to C, calculate the electric potential energy at each of these points.

The density of a liquid could be found by using

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Determine the maximum r-value of the polar equation r =3+3 cos 0