What is the main basis on which sociologists have classified societies in human history?

a) size of community

b) type of food

c) level of knowledge

d) subsistence technology

The extremely slow movement of material downslope is called a. creep b. mudslide c. landslide

A strip of copper metal is riveted to a strip of aluminum. the two metals are then heated. the coefficient of linear expansion of aluminum is greater than that of copper. what happens?

Calculate the momentum when a 10-kg object move with a speed of 5 m/s.

Consider the acceleration graph. If the mass of the object that is accelerating does not change, but the force applied is tripled, how would the slope of the line change?

A 0.145 kg baseball is thrown from a platform above the ground at a 10 m/s. the ball is moving 15 m/s when it strikes the ground. from what height above the ground was the ball thrown? 6 m 10 m 1 m 5 m

2. Weight is a force from gravity pulling down on any object with mass. True False

A 0.9 kg football is thrown with a velocity of 22.0 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.06 seconds. What is the force exerted on the receiver?

water waves carry particles of water in the same direction that the wave is traveling. True or False?

Two objects of different masses are sitting on different balance scales. Object A has a greater mass than object B. How will the weights of the objects compare to each other?

Does an object that feels cold to the touch contain thermal energy Explain your answer