Identical particles are placed at the l1 =50-cm and l2 =80-cm marks on a meter stick of negligible mass. this rigid body is then mounted so as to rotate freely about a pivot at the 0-cm mark on the meter stick. if this body is released from rest in a horizontal position, what is the angular speed of the meter stick as it swings through its lowest position?

Na food processing facility, a spherical container of inner radius r1 5 40 cm, outer radius r2 5 41 cm, and ther- mal conductivity k 5 1.5 w/m · k is used to store hot water and to keep it at 100°c at all times. to accomplish this, the outer surface of the container is wrapped with a 800-w electric strip heater and then insulated. the temperature of the inner surface of the container is observed to be nearly 120°c at all times. as- suming 10 percent of the heat generated in the heater is lost through the insulation, (a) express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the container, (b) obtain a relation for the variation of temperature in the container material by solving the differential equation, and (c) evaluate the outer surface tempera- ture of the container. also determine how much water at 100°c this tank can supply steadily if the cold water enters at 20°c.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter