Activity: Ant Analogy! Imagine yourself as the superhero in a movie entitled "Ant Man". You walk in
a straight rubber sheet, simulating empty space with no mass in it. Walk on one side
of the sheet in a beautiful straight line over to the other side. Then, put a big stone
in the middle of a rubber sheet and walk again (see figure 1 for reference).
Ant's path
Ant's path
Rubber sheet
Rubber sheet
Paperweight
Stone's weight
Figure 1. The Ant's Path
Questions:
1. What happened to the rubber sheet upon putting a big stone in the middle?
2. Based from the two path you have travelled, which path takes longer? Why?
3. "Einstein concluded that we live in a curved spacetime" explain this
conclusion based on the ant analogy.​

What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Newton's law of cooling states that the rate of change in the temperature t(t) of a body is proportional to the difference between the temperature of the medium m(t) and the temperature of the body. that is, startfraction dt over dt endfraction equals upper k left bracket upper m left parenthesis t right parenthesis minus upper t left parenthesis t right parenthesis right bracket , where k is a constant. let kequals0.04 left parenthesis min right parenthesis superscript negative 1 and the temperature of the medium be constant, m(t) font size decreased by 3 equivalent font size decreased by 3 294 kelvins. if the body is initially at 369 kelvins, use euler's method with hequals0.1 min to approximate the temperature of the body after (a) 30 minutes and (b) 60 minutes.