UCF PHY2054 Post Lab-Unit 01 Charges and Charged Objects 1. Rub a balloon on your head and stick it to the wall. And it sticks-very nice. This question is about why, after a while, it falls off. Consider each of the following explanations. Choose the best one. It falls because it uses up the energy you put on it when you rubbed it. b. It falls because it uses up the charge you put on it when you rubbed it. a. It falls because the energy you put on it slowly leaks off into the wall or the air. d.) It falls because the charge you put on it slowly leaks off into the wall or the air. Given your choice for part 1, would it be possible, in principle under ideal circumstances, for a balloon to stick to a wall indefinitely? C. 2. How do you know two different types of charges exist? Please use your observations/evidence 3. to support your reasoning. ayr.rubbing the ball developlen it. threfore, choige'develops an opposite chargedon the su muluel dlarge induction. Vector Applications with the head there io slatie e auttaching the ball to dhe al, dhis a rface of the walT b on A. B. Y-oxis Y-axis 7 µC 0.5 m 60° -X-axis Х-ахis -4 uC 2 HC Three point charges of 2.00 µC, 7.00 µC, and -4.00 uC are located at the corners of an equilateral triangle as shown above in picture A. The two on the x-axis are in fixed positions. 1. In picture B, use trig and vector identities to calculate the x and y components of the displacement vector between the 2.00-uC charge and the 7.00-uC charge. = O.5 sin 60° =0.433 m 0.5 csk0° 0.25m %3D 2. Draw a free-body diagram to show the electric forces exerted on the 7.00-uC charge and clearly indicate which object exerts each electric force on it, and in which direction. (Note: You are not being asked to calculate forces, but simply to draw the proper yectors)
UCF PHY2054 Post Lab-Unit 01 Charges and Charged Objects 1. Rub a balloon on your head and stick it to the wall. And it sticks-very nice. This question is about why, after a while, it falls off. Consider each of the following explanations. Choose the best one. It falls because it uses up the energy you put on it when you rubbed it. b. It falls because it uses up the charge you put on it when you rubbed it. a. It falls because the energy you put on it slowly leaks off into the wall or the air. d.) It falls because the charge you put on it slowly leaks off into the wall or the air. Given your choice for part 1, would it be possible, in principle under ideal circumstances, for a balloon to stick to a wall indefinitely? C. 2. How do you know two different types of charges exist? Please use your observations/evidence 3. to support your reasoning. ayr.rubbing the ball developlen it. threfore, choige'develops an opposite chargedon the su muluel dlarge induction. Vector Applications with the head there io slatie e auttaching the ball to dhe al, dhis a rface of the walT b on A. B. Y-oxis Y-axis 7 µC 0.5 m 60° -X-axis Х-ахis -4 uC 2 HC Three point charges of 2.00 µC, 7.00 µC, and -4.00 uC are located at the corners of an equilateral triangle as shown above in picture A. The two on the x-axis are in fixed positions. 1. In picture B, use trig and vector identities to calculate the x and y components of the displacement vector between the 2.00-uC charge and the 7.00-uC charge. = O.5 sin 60° =0.433 m 0.5 csk0° 0.25m %3D 2. Draw a free-body diagram to show the electric forces exerted on the 7.00-uC charge and clearly indicate which object exerts each electric force on it, and in which direction. (Note: You are not being asked to calculate forces, but simply to draw the proper yectors)
Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter24: Gauss’s Law
Section: Chapter Questions
Problem 24.9CQ: A common demonstration involves charging a rubber balloon, which is an insulator, by rubbing it on...
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Transcribed Image Text:UCF PHY2054 Post Lab-Unit 01
Charges and Charged Objects
1. Rub a balloon on your head and stick it to the wall. And it sticks-very nice. This question is
about why, after a while, it falls off. Consider each of the following explanations. Choose the
best one.
It falls because it uses up the energy you put on it when you rubbed it.
b. It falls because it uses up the charge you put on it when you rubbed it.
a.
It falls because the energy you put on it slowly leaks off into the wall or the air.
d.) It falls because the charge you put on it slowly leaks off into the wall or the air.
Given your choice for part 1, would it be possible, in principle under ideal circumstances, for a
balloon to stick to a wall indefinitely?
C.
2.
How do you know two different types of charges exist? Please use your observations/evidence
3.
to support your reasoning.
ayr.rubbing the ball
developlen it. threfore,
choige'develops an opposite chargedon the su
muluel dlarge induction.
Vector Applications
with the head there io slatie e
auttaching the ball to dhe al, dhis a
rface of the walT b
on
A.
B.
Y-oxis
Y-axis
7 µC
0.5 m
60°
-X-axis
Х-ахis
-4 uC
2 HC
Three point charges of 2.00 µC, 7.00 µC, and -4.00 uC are located at the corners of an equilateral
triangle as shown above in picture A. The two on the x-axis are in fixed positions.
1. In picture B, use trig and vector identities to calculate the x and y components of the
displacement vector between the 2.00-uC charge and the 7.00-uC charge.
= O.5 sin 60°
=0.433 m
0.5 csk0°
0.25m
%3D
2.
Draw a free-body diagram to show the electric forces exerted on the 7.00-uC charge and
clearly indicate which object exerts each electric force on it, and in which direction. (Note:
You are not being asked to calculate forces, but simply to draw the proper yectors)
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