A 0.1kg piece of modeling clay is tossed at 4 m/s. It hits a 0.1kg block of wood that is not moving and the clay sticks to the wood. After the collision, they slide together at 2 m/s. What is the impulse on the modeling clay?

Ineed with these last two questions: 1) what are two types of cold air masses that influence the weather in north america? name them and describe their humidity. 2) describe the motion of a cold air mass and a warm air mass and the weather you would expect at a warm front and an occluded front.

In a good thermo flask the main cause of heat loss is

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?