Consider the roller coaster on the track. if you want to increase the kinetic energy of the roller coaster as it proceeds through the course, what is the first thing you should do?
a) increase the height at point a.
b) decrease the height at point a.
c) increase the height at point b.
d) decrease the height at point b.

The plum pudding model of the atom states that ?

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?