Point charge q1 = -5.00 nC is at the origin and point charge q2 = +3.00nC is on the x -axis at x = 3.00cm. Point P is on the y-axis at y = 4.00cm. (A)Calculate the electric fields E 1 and E 2 at point P due to the charges q1 and q2.(Express your answer in newtons per coulomb in terms of the unit vectors i^, j^. Enter your answers separated by a comma.) (B) Use the results of part (a) to obtain the resultant field at P, expressed in unit vector form.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?