Login with Facebook Login
Anisha Banerjee (fb.100000562050743) (
4 , 0 ,
6 ,
0 )
from Katwa, West Bengal, India, joined 2 years ago


Q. A bucket containing water is rotated in a vertical circle at a high speed. What will happen to water when the bucket is upside down ...
8 , 0
3 answers under Force And Laws Of Motion 1 year, 11 months ago

A. link
1 year, 11 months ago
answer

Q. What is an electron volt? ...
4 , 0
2 answers under Electricity 1 year, 11 months ago

A. A unit of energy equal to the work done on an electron in moving it through a potential difference of 1 volt. Its used to measure particle energies although it not an SI unit. 1 eV = 1.602*10^-19... link
1 year, 11 months ago
answer

Q. A 1.2 kg block and a 1.8 kg block are initially at rest on a frictionless, horizontal surface. When a compressed spring between ...
4 , 0
3 answers under Force And Laws Of Motion 1 year, 11 months ago

A. Sorry, but i cant see any picture. By the way, u can use conservation of energy for solving this problem.. spring constant 0.5 compression^2 = total K.E. of the two blocks link
1 year, 11 months ago
answer

Q. P(2,1), Q(2,5) and R(k,5) are the three vertices of a triangle PQR in which angle Q =90 degrees. If ...
3 , 0
3 answers under Coordinate Geometry 1 year, 7 months ago

A. Right Angled Triangle Area is 1/2* Base * Height, Here Base is QR and height QP so lets find length of line QP which is 5-1=4 But QR is K-5 SO to find K lets have given Area 10 which =... link
1 year, 7 months ago
answer

Q. In the story ''The Tiger in The Tunnel'' by Ruskin Bond, what is the significance of Tembu handling his father's axe? ...
3 , 0
1 answer under The Adventures of Toto -... 1 year, 11 months ago

A. The significance was that Tembu had become to the family what his father was and shouldered all the responsibility that came along. link
1 year, 11 months ago
answer

Q. If 18.75 * 10^18 electrons flow through a conductor in 3 seconds, what is the total charge that flows through the conductor? ...
3 , 0
1 answer under Electricity 1 year, 11 months ago

A. The total charge flowing through the conductor is n*e(n = no. of electrons; e = charge on 1 electron) Therefore, charge flowing(q) = 3.00375 C The current, however is = q/t = 1.00125 A(here t=... link
1 year, 11 months ago
answer

Q.
You are given three bulbs of 25, 40 and 60 watt all operating at 220 V. which out of the three has the lowest resistance?
3 , 0
1 answer under Electricity 1 year, 11 months ago

A. This needs quite a bit of calculation actually! all operating at same voltage, hence putting in W = V^2/R you can find the resistance in each case and compare. However, there is an easier way... link
1 year, 11 months ago
answer

Q. A 2000 kg car travels at a constant speed of 12 m/s around a circular curve of radius 30 meters. As the car goes ...
3 , 0
1 answer under Force And Laws Of Motion 1 year, 11 months ago

A. For the car to stay on the track, the centripetal force must be equal to the centrifugal force. Hence, the centripetal force = mv2/r = 20001212/30 = 9600 N(its a pseudo force thats directed... link
1 year, 11 months ago
answer

Q. A spring scale reads 2 kg as it pulls a 1 kg mass across a table. What is the magnitude of the force exerted by ...
3 , 0
1 answer under Force And Laws Of Motion 1 year, 11 months ago

A. The force exerted by the spring on the mass is 1 kgf. The spring scale reading shows the tension in the spring, now a tension of 2 kgf, moves a body of 1kg, without acceleration, hence, 1 kgf is... link
1 year, 11 months ago
answer

Q. A force of 20 N acts upon a body whose weight is 9.8 N on the earth. What is the acceleration produced in the ...
3 , 0
1 answer under Force And Laws Of Motion 1 year, 11 months ago

A. Weight of the body(W) = 9.8 N Acceleration due to gravity on Earth(g) = 9.8 m/s2 Hence, mass of the body(m) = 1 kg (W= mg or, m = W/g) Force exerted on body(F) = 20 N We know, F= ma ... link
1 year, 11 months ago
answer


next