Matthew gets thirsty and decides to make some fruit punch. he dissolves a packet of the sugar mix into a pitcher of warm water. which of these best describes what occurred?
a)
physical change
b)
chemical change
c)
both a physical and chemical change
d)
neither a physical of chemical change
eliminate

Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?