Explanation #1: Why does the puck gradually slow down as it moves across the ice?
Here are three different students' force diagrams for the puck.
Student A
Student B
Student C
Force of
stick
Force of
friction
Force of
friction
Gradually
decreasing
force of stick
Which of these force diagrams do you think would be most appropriate
to use in this explanation? Explain your thinking.

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.