Question 1 of 20
1 point
annessa wants to know if baking powder or baking soda makes chocolate
cake rise higher. what should she do next in order to follow the steps of
inquiry?
o
a. observe chocolate cakes made with either baking powder or
baking soda baking in the oven.
b. predict whether baking powder or baking soda will make
chocolate cake rise higher.
c. design an experiment in which chocolate cakes are baked using
either baking powder or baking soda.
o
d. measure the heights of several chocolate cakes baked with either
baking powder or baking soda

For which pair of objects would adding the same a

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?