Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. What is the absolute value of the potential difference across a 9.47 nm-thick membrane if the magnitude of the electric field strength across it is 7.66 MV/m? You may assume a uniform E-field.

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

Describe uniform velocity and variable velocity in short

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?