A 400. kg roller coaster car is traveling at a constant speed of 12 m/s through a dip with a radius of curvature of 40m. What is the normal force acting on the car at the bottom of the dip?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

What are the necessary conditions for fusion?

Contains chemical energy. a. heat b. light c. natural gas