Planetary ring systems can result from the destruction of a moon orbiting within the Roche limit of a planet. Choose the statement that best describes how a moon can be destroyed within this limit. a. The chance of collision with other objects increases. b. The forces binding the moon together are exceeded by the tidal forces from the planet. c. The planet's magnetic field rips the moon apart. d. Drag from the atmosphere causes the moon to break up.

Asteam power plant operates on an ideal reheat rankine cycle between the pressure limits of 15 mpa and 10 kpa. the mass flow rate of steam through the cycle is 12 kg/s. steam enters both stages of the turbine at 500°c. if the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10 percent, determine (a) the pressure at which reheating takes place, (b) the total rate of heat input in the boiler, and (c) the thermal efficiency of the cycle. also, show the cycle on a t-s diagram with respect to the saturation lines. (2.15 mpa; 45.0 mw; 42.6%)

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?