When a cube is inscribed in a sphere of radius r, the length L of a side of the cube is sqrt(4/3)*r . If a positive point charge Q is placed at the centre of the spherical surface, the ratio of the electric flux sphere at the spherical surface to the flux cube at the surface of the cube is? Explain please I know how to find the flux of a sphere how would I find it for a cube? Then would I put sphere over cube to solve the question?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f