55 th question in the attachment........................................
55 th question in the attachment.......................................
.
sri harshitha honey , 6 Years ago
Grade 12
Mechanics> 55 th question in the attachment............
3 Answers
Arun
Let the charges are q1,q2
so q1=q2=2*10^(-16)C
distance,d=20cm so radius,r=d/2=5cm=5*10^(-2)m
force F=(10^(-9)*2*10^(-16)*2*10^(-16))/(9*25*10^(-4))
=1.77*10^(-39)N
Therefore electric field intensity, E=F/q
=8.88*10^(-24)volts
so q1=q2=2*10^(-16)C
distance,d=20cm so radius,r=d/2=5cm=5*10^(-2)m
force F=(10^(-9)*2*10^(-16)*2*10^(-16))/(9*25*10^(-4))
=1.77*10^(-39)N
Therefore electric field intensity, E=F/q
=8.88*10^(-24)volts
Vikas TU
Dear student
Let A s the midpoint
When charge is placed at A
E1 = kq1q2/r + kq3q4/r
E1 = 72*10^-4 J
When charge is placed at B , 20 cm from both charge,
E2 = Kq1q2/r + kq3q4/r
E2 = 36*10^-4 J
Work done = E1 - E2
= 3.6* 10^-3 J
Let A s the midpoint
When charge is placed at A
E1 = kq1q2/r + kq3q4/r
E1 = 72*10^-4 J
When charge is placed at B , 20 cm from both charge,
E2 = Kq1q2/r + kq3q4/r
E2 = 36*10^-4 J
Work done = E1 - E2
= 3.6* 10^-3 J
aswanth nayak
Dear student ,
Let A is the midpoint
When charge is placed at A
E1 = kq1q2/r + kq3q4/r
E1 = 72*10^-4 J
When charge is placed at B , 20 cm from both charge,
E2 = Kq1q2/r + kq3q4/r
E2 = 36*10^-4 J
Work done = E1 - E2
= 3.6* 10^-3 J
Regards
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on mechanics
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
Three identical balls are placed on a frictionless
horizontal surface touching each other. They stick to
each other because of adhesive. Another ball of same
radius and mass m is placed over the void created by
the three balls. Find the forces applied by the balls
kept on the floor to each other if the system remains
in equilibrium.
mechanics
1 Answer Available
Last Activity: 7 Months ago
A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
11
21
31
41
A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.
11
21
31
41
mechanics
1 Answer Available
Last Activity: 7 Months ago
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mmat the free end, where a small mass of 2 g is positioned. determine(i) The velocity of the end when passing through the zero position(ii) The acceleration at maximum displacement(iii) The maximum kinetic energy of the mass
A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mm
at the free end, where a small mass of 2 g is positioned. determine
(i) The velocity of the end when passing through the zero position
(ii) The acceleration at maximum displacement
(iii) The maximum kinetic energy of the mass
mechanics
2 Answers Available
Last Activity: 3 Years ago
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of springconstant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by thedamping constant b = 0.07kg/s.(i) Find the period of the damped oscillation.(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of spring
constant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by the
damping constant b = 0.07kg/s.
(i) Find the period of the damped oscillation.
(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?
mechanics
1 Answer Available
Last Activity: 3 Years ago
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0
mechanics
1 Answer Available
Last Activity: 3 Years ago