An air-filled parallel plate capacitor originally has a capacitance of Corig . The capacitor is then connect to a power supply and fully charged. While still connected to the power supply, a dielectric material with a dielectric constant of k is introduced between the plates of the capacitor. How does the charge on the dielectric-filled capacitor, Qnew compare to the original charge (ie. what is the ratio, Qnew/Qorig)

a. 1/k^2
b. K
c. 1, Qnew = Qorig
d. 1/k
e. K^2

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

A3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular? a 3030 cmcm wrench is used to loosen a bolt with a force applied 0.30.3 mm from the bolt. it takes 6060 nn to loosen the bolt when the force is applied perpendicular to the wrench. how much force would it take if the force was applied at a 3030 degree angle from perpendicular?