Hot questions

0 votes

0 answers

Figure shows a displacements time graph. Comment on the sign of velocities at point P, Q, R, S and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A lift is accelerated upward. Will the apparent weight of a person inside the lift increase, decrease or remain the same relative to its real weight? If the lift is going with uniform speed,

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Ten one rupee coins are put on top of one another on a table. Each coin has a mass m kg. Give the magnitude and direction of (a) The force on the `7^(th)` coin (counted from the bottom) due to all coins above it. (b) The force on the `7^(th)` coin by the eighth coin and (c) The reaction of the sixth coin on the seventh

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Friction is a self adjusting force.

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What provides the centripetal force to a car taking a turn on a level

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Which component of a force does not contribute towards

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A satellite is revolving is a circular path close to a planet of density P. find an expression for its period of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Why is it painful to walk barefooted on a road covered with pebbles having sharp

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Give two areas where Bernoulli’s theorem is

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A Sphere is at a temperature of 6oo k. Its cooling rate is R in an external environment of 200k. If temperature falls to 400k. What is the cooling rate R1 in terms of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Differentiate between conduction, convection and

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is the pressure on a swimmer 10 m below the surface of a

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

How will you ‘weigh the sun’, that is estimate its mass? The mean orbital radius of the earth around the sun is `1.5 × 10^8`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

What is the moment of inertia of a disc about one of its

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Show that moment of a couple does not depend on the point about which you take the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The angular speed of a motor wheel is increased from 1200 rpm to 3120 rpm in 16 seconds. (i) What is its angular acceleration, assuming the acceleration to be uniform? (ii) How many revolutions does the engine make during this

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A car weighs 1800 kg. The distance between its front and back axles is 1.8 m. Its centre of gravity is 1.05 m behind the front axle. Determine the force exerted by the level ground on each front wheel and each back

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

From a uniform disk of radius R, a circular hole of radius R/2 is cut out. The centre of the hole is at R/2 from the centre of the original disc. Locate the centre of gravity of the resulting flat

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

In the formula, `X = 3YZ^2, X and Z` have dimensions of capacitance and magnetic induction. The dimensions of Y in MKSQ system

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

An initially stationary device lying on a frictionless floor explodes into two pieces and slides across the floor. One piece is moving in positive `x`-direction then other piece is moving

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

Hot questions

Categories