TIME REMAI 28:46
beharko
Denise is riding her bike and falls to the ground. During
the collision, she hits both grass and cement.
Which best explains why Denise had fewer injuries to
the area of her body that hit the grass?
O The grass did not exert a reaction force.
O The grass did not exert an action force.
O The grass shortens the time of the collision
O The grass extends the time of the collision
to search
o
Bi

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

Sugar is dissolved in water. which is the solute? sugar neither both water