A ball of mass 0.5k has 100 Joules of kinetic energy what is speed of the ball​ full solution please

What are atoms of the same element with varying number of neutrons

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)