What does this map show about the Viking civilization? It shows that the Vikings sailed to North America.
It shows all the people whom the Vikings conquered.
It shows the routes that the Vikings sailed around the world.
It shows the people whom the Vikings encountered on their journeys.

What precautions should you take to prevent injuries when dealing with heavy loads?

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.