In fig 21-25 particle 10f charge + 1.0 Nc and particle 2 of charge -3.0 Nc are held at sparation L=10.0 cm on an X axis. If particle 3of uknown charge 93 is to be located such that the net elescrotastic force on'in from particle 1 and 2 is zero,what must be the (a) x and (b) y cordinates of particle 3?
1. In fig 21-25 particle 10f charge + 1.0 Nc and particle 2 of charge -3.0 Nc are held at sparation L=10.0 cm on an X axis. If particle 3of uknown charge 93 is to be located such that the net elescrotastic force on'in from particle 1 and 2 is zero,what must be the (a) x and (b) y cordinates of particle 3?
Diketahui:
q1 = 1 nC
q2 = -3 nC
L = 10 cm
Ditanya:
a. Koordinat x
b. Koordinat y
untuk q3 dimana F=0
Jawab:
q3 tidak mungkin diantara q1 dan q2 karena gaya dari q1 dan q2 searah.
q3 tidak mungkin di kanan q2 krn gaya dr q2>gaya dari q1.
Jadi q3 ada dikiri q1.
F₁₃ = F₂₃
kq1.q3/d² = kq2.q3/(L+d)²
(L+d)²/d² = q2/q1
[(L+d)/d]² = 3/1
(L+d)/d = √3
L+d = d√3
L= d(√3-1)
d = L/(√3-1)
d = 10/0,7 = 13,6 cm
a. q3 harus ditempatkan pada x = -13,6 cm sepanjang sb x.
b. karena q3 harus pada sb x maka y=0
2. Object A has a charge of +2 C and object B has a charge of +4 C. Which is true?
Jawaban:
g tau cri sendiri banh
xicixixixiixixxiixixici
3. In fig 21-25,particle of charge + a and particle 2of change + 400q are held at separation L =9.00cm on an X axis. If particle 3 of change 93 isto be located such that the three particles remain in place wen relased what must be the (a)×and (b) y cordinates of particle 3,and (c) the ratio 93 1q?
Diketahui:
q1 = +q
q2 = +4q
L = 9 cm
Ditanya : lokasi q3 dimana ketiga muatan tidak bergerak.
a. koordinat x
b. koordinat y
c. ratio q3/q
Jawab.
q3 harus berada diantara q1 dan q2.
F₁₃ = F₂₃
kq1.q3/d² = kq2.q3/(L+d)²
(L-d)²/d² = q2/q1
[(L-d)/d]² = 4q/q=4
(L-d)/d = 2
L-d = 2d
3d = L
d = 1/3L = 3 cm
a. koordinat x = 3 cm
b. q3 berada pada sb x ---> y=0
c. Gaya di muatan q sama dgn nol karena tidak bergerak
kq.q3/x² = kq.4q/L²
q3/x² = 4q/L²
q3/q = 4.x²/L²
q3/q = 4.3²/9²
q3/q = 4/9
4. Person in charge of a school
Person in charge of a school :
Principal
5. A particle moves with a position vektor of r(t)=4t^i+(6t-2)j+3k.the vector of the particle at t=1second is
~Vektor Gaya~
Diketahui
r = 4t[tex]^{i}[/tex] + ( 6t - 2 ) + 3k
t = 1
Ditanya
Posisi vektor =__?
Jawab
karena t = 1 maka posisi vektor
r = 4[tex]^{2}[/tex] + ( 6t - 2 )j + 3k
r = 4. 1[tex]^{i}[/tex] + ( 6(1) - 2 )j + 3k
r = 4. 1[tex]^{i}[/tex] + 3j + 3k
6. The shop refuses my cheque, I must pay in .... a. interestb. cashc. notesd. chargeA person who has money in a bank is a ...... of the bank a. tellerb. bank managerc. the person in charged. customer
Jawaban:
jawaban
D dan B
semoga bermanfaat
7. A student says that current is the amount of charge.
arti kata tersebut adalah:Seorang siswa mengatakan bahwa saat ini adalah jumlah biaya.
soalnya yang mana ya?
8. A particle travels 24.6 km in 30 minutes. Find the speed of particle in km/h
Jawaban:
49,2km/h
Penjelasan dengan langkah-langkah:
s = 24,6km
t = 30minutes or 0,5hours
v=s/t
v=24,6/0,5
v=49,2km/h
9. At what distance in cm from a negative charge of 7.425 nc would the electric field strength be 1.37 x 10^6 n/c
Jawaban:
698407.99 cm
Penjelasan:
First, formula to determine electric field strength
E = F/Q
E = k(Q)/(r^2)
Because of
k = 9 * 10^9 Nm2/c^2
nano (n) = 10^-9 (I think)
Thus,
1.37 * 10^6 = (9*10^9)*(7.425*10^-9)/(r^2)
1.37 * 10^6 = 66.825/(r^2)
r = (66.825 / 1.37 * 10^6)^(1/2) = 6984.08 m = 698407.99 cm
10. A particle travels 28.5 km in 30 minutes. Find the speed of the particle in km/h
Jawab:
57 km/h
Penjelasan dengan langkah-langkah:
from the question, we know that:
D = 28,5 km
T = 30 minutes = 0,5 hour
Because the formula is Speed = [tex]\frac{distance}{time}[/tex]
so, Speed = [tex]\frac{28,5}{0,5}[/tex] = 57 km/h
Hope you find it helpful! Feel free to ask if there's something you don't understand from my explanation :)
11. What is the total charge of all the electrons in a 12-kg bar of gold? What is the net charge of the bar? (Gold has 79 electrons per atom and an atomic mass of 197u.)
Jawaban:
Penjelasan:
What is the total charge of all the electrons in a 12kg bar of gold? What is the net charge of the bar? (Gold has 79 electrons per atom and an atomic mass of 197u).
I have tried the following but my book gives a different answer.
I know...
1 atomic mass= 1.6605x10^-27kg
gold atomic mass=197u
79 electrons
e charge= 1.6x10^-19C
step 1: 1.6605x10^-27 * 197 = 3.27x10^-25kg weight of a gold atom
step 2: 3.27x10^-25kg / 12kg = 2.725X10^-26 atoms in the bar of gold
step 3: 79e * 2.725x10^26 = 2.15x10^-24 number of electrons in bar of gold
step 4: 2.15x10^-24 * 1.6X10^-19C = 5.978X10^-19
But the answer in the book says the answer should be -4.6X10^8C and the net charge is zero.
Also, I am not understanding why the net charge of the bar is zero.
Can you explain this as well
12. Gas arrangement of particle
Jawaban:
Answer :
The particals which are atoms in gases are freely packed with no regular arrangements.
Additional information :
The atoms in gases are very free
to move from place to place. It also have very less intermolecular forces. The atoms in gases have more space between them when compared to liquids and solids.
hope this will help u !!!
13. A negative charge of - 2.0 C and a positive charge of 3.0 C are separated by 80 m. What is the force between the two charges?
Jawaban:
Makanya belajar yang bener dek
Penjelasan:
Nasi uduk semur jengkol
good luck on your homework
14. 1. A grindstone has diameter of 3 cm and rotates at 120 rpm. Determine :a. frequency and periodeb. angular velocityc. linear velocity of particle at edge of grindstone
a. frequency and periode. Ini sepertinya rumus fisika tentang gerak melingkar
15. The shop refuses my cheque, I must pay in .... a. interestb. cashc. notesd. chargeA person who has money in a bank is a ...... of the bank a. tellerb. bank managerc the person in charged. customer
Jawaban:
no.1 c. notes
no.2 a.teller
16. are you the one in charge who has a girlfriend?
Jawaban:
apakah Anda yang bertanggung jawab yang memiliki pacar?
gw hehe tidak
Penjelasan:
17. The subatomic particele has a negative charge is
the answers is electrons
18. The magnetic force of a material comes from the spinning of what atomic particle?
Jawaban:
Every substance is made up of tiny units called atoms. Each atom has electrons, particles that carry electric charges. Spinning like tops, the electrons circle the nucleus, or core, of an atom. Their movement generates an electric current and causes each electron to act like a microscopic magnet.
Read more on Brainly.in - https://brainly.in/question/40909693#readmore
19. A positive charge Q is placed on a conductive spherical shell with inner radius 1 and outer radius 2. A particle with charge q is placed at the center of the spherical cavity. The magnitude of the electric field at a point in a spherical cavity at a distance r from the center is
The answer and explanation is attached the PNG file
20. draw the position of particle of these things
Jawaban:
gambarkan posisi partikel dari benda-benda ini
itu artinya ka jan lupa jadikan jawaban terbaik ya ^_^
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