- #1
Dx
Hello,
I have some missed test questions that I still don't understand. Can anyone please explain these.
1)
Two chrged objects atrract each other with a force F. What happens to the F between them if one is doubled, the other is tripled and the separation distance between their centers is reduced to 1/4 its original value? the force is now equal to
16F
3/8F
96F
2)What is the charge on 1kg of protons?
1C
9.6 x 10^7 C
6x10^26C
3)A copper penny has mass 3g. A total of 4x10^12 electrons are transfored from one nuetral penny to another. if the electrostatic force of attraction between the pennies is equal to the weight of a penny, what is the separation between them?
31cm
35cm
37cm
4) How can a negatively charged rod charge an electroscope negatively? Is it by conduction because its not induction.
can anyone gimme their answer and how they derived it since I missed it I provided the remaining test answers to help you choose from. Please any help is appreciated as always.
Thanks!
Dx
I have some missed test questions that I still don't understand. Can anyone please explain these.
1)
Two chrged objects atrract each other with a force F. What happens to the F between them if one is doubled, the other is tripled and the separation distance between their centers is reduced to 1/4 its original value? the force is now equal to
16F
3/8F
96F
2)What is the charge on 1kg of protons?
1C
9.6 x 10^7 C
6x10^26C
3)A copper penny has mass 3g. A total of 4x10^12 electrons are transfored from one nuetral penny to another. if the electrostatic force of attraction between the pennies is equal to the weight of a penny, what is the separation between them?
31cm
35cm
37cm
4) How can a negatively charged rod charge an electroscope negatively? Is it by conduction because its not induction.
can anyone gimme their answer and how they derived it since I missed it I provided the remaining test answers to help you choose from. Please any help is appreciated as always.
Thanks!
Dx