Underground mammals, such as the ancestors of moles, are thought to have first evolved as the dinosaurs died out.

which effect of an environmental change does this best illustrate?

migration
loss of habitat
change in behavior
speciation

In a set amount of time, a battery supplies 25j of energy to an electric circuit that includes two different loads. one of the loads produces 10 j of heat energy during this time interval. how much heat energy is produced by the second load in this time? explain your answer

Acamcorder has a power rating of 20 watts. if the output voltage from its battery is 9 volts, what current does it use?

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.