The data in the table were recorded during an investigation in which a paramecium was placed in a hypertonic salt solution.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

What is the temperature in degrees celsius of a substance with a tempature of 49k

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?