Carla ejerce una fuerza de módulo igual a 250 N sobre un refrigerador, logrando desplazarlo 12 m en una superficie horizontal. Si se desprecia el roce, ¿cuál es el trabajo
realizado por la fuerza, si esta fue ejercida en la misma dirección y sentido que el
movimiento del refrigerador?

Why do electron microscopes have higher resolving power than light microscopes?

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?