Abaseball is hit from a height of 4 feet above the ground with an initial velocity of 110 feet per second and at an angle of 35 ° above the horizontal. find the maximum height reached by the baseball. determine whether it will clear a 10-foot-highfence located 375 feet from home plate. use the model for projectile motion, assuming there is no air resistance.

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

Cells in the nervous system have a potential difference of 70 mv across the cell membrane separating the interior of the cell from the extracellular fluid. this potential difference is maintained by ion pumps that move charged ions across the membrane. is this an emf? select the correct answer and explanation. 1)no. the ion pumps cannot separate charges; thus, they cannot create a potential difference. 2)yes. the ion pumps cannot separate charges, but they still can create a potential difference. 3)yes. the ion pumps can actively separate charge; thus, they can create a potential difference. 4)no. the ion pumps can separate charges, but they cannot create a potential difference.