A block of clay is suspended as part of a ballistic pendulum (see Example 8.7). You have a gun that uses compressed air to fire a small 5.00 g ball into the clay. As you change the pressure of the air used to fire the ball, you can adjust the speed of the ball as it emerges from the gun. You fire the ball into the clay at a series of known speeds and measure the height to which the clay rises after the ball embeds within it. Your data are shown in the table below: Speed (m/s) Height (mm) 100 8.8 110 10.6 120 12.6 130 14.8 140 17.2 150 19.7 Make a plot of the square of the initial speed of the ball as a function of height. (Hint: Be sure to convert into SI units.) Using a linear “best-fit” to the data, determine the mass of the block of clay.
A block of clay is suspended as part of a ballistic pendulum (see Example 8.7). You have a gun that uses compressed air to fire a small 5.00 g ball into the clay. As you change the pressure of the air used to fire the ball, you can adjust the speed of the ball as it emerges from the gun. You fire the ball into the clay at a series of known speeds and measure the height to which the clay rises after the ball embeds within it. Your data are shown in the table below: Speed (m/s) Height (mm) 100 8.8 110 10.6 120 12.6 130 14.8 140 17.2 150 19.7 Make a plot of the square of the initial speed of the ball as a function of height. (Hint: Be sure to convert into SI units.) Using a linear “best-fit” to the data, determine the mass of the block of clay.
A block of clay is suspended as part of a ballistic pendulum (see Example 8.7). You have a gun that uses compressed air to fire a small 5.00 g ball into the clay. As you change the pressure of the air used to fire the ball, you can adjust the speed of the ball as it emerges from the gun. You fire the ball into the clay at a series of known speeds and measure the height to which the clay rises after the ball embeds within it. Your data are shown in the table below:
Speed (m/s)
Height (mm)
100
8.8
110
10.6
120
12.6
130
14.8
140
17.2
150
19.7
Make a plot of the square of the initial speed of the ball as a function of height. (Hint: Be sure to convert into SI units.) Using a linear “best-fit” to the data, determine the mass of the block of clay.
I do not understand the process to answer the second part of question b. Please help me understand how to get there!
Rank the six combinations of electric charges on the basis of the electric force acting on 91. Define forces pointing to the right as positive and forces pointing to the left as negative.
Rank in increasing order by placing the most negative on the left and the most positive on the right. To rank items as equivalent, overlap them.
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[most negative
91 = +1nC
92 = +1nC
91 = -1nC
93 = +1nC
92- +1nC
93 = +1nC
-1nC
92- -1nC
93- -1nC
91= +1nC
92 = +1nC
93=-1nC
91
+1nC
92=-1nC
93=-1nC
91 = +1nC
2 = −1nC
93 = +1nC
The correct ranking cannot be determined.
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most positive
Part A
Find the x-component of the electric field at the origin, point O.
Express your answer in newtons per coulomb to three significant figures, keeping in mind that an x component that points to the right is positive.
▸ View Available Hint(s)
Eoz =
Η ΑΣΦ
?
N/C
Submit
Part B
Now, assume that charge q2 is negative; q2 = -6 nC, as shown in (Figure 2). What is the x-component of the net electric field at the origin, point O?
Express your answer in newtons per coulomb to three significant figures, keeping in mind that an x component that points to the right is positive.
▸ View Available Hint(s)
Eoz=
Η ΑΣΦ
?
N/C
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