When the biker is at the top of the ramp, he has a speed of 10 m/s at the height of 25 m. The bike and person have a total mass of 100 kg.
He speeds into the spring at the end of the ramp, which slows him to
a stop. The total initial energy is
J.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

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

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?