Recently Active Physics Questions

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ampere=charge/time A=q/t so why do we call it a fundamental unit? charge should have been the fundamental unit like time. ...

How is a mirage formed? Please post a detailed explanation along with diagrams. ...

A car and truck start from rest at same instant, with car being a little behind the truck. The truck and car has a constant acceleration of 2.2 m/s2 and 3.5 m/s2 respectively. the car overtakes the truck when it(truck) has mo ...

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Find the angle between two vectors A and B, when A = 10i + 10j and 1. B = 5i - 5j 2. B = - 5j 3. B = - 5i + 5j ...

If A = 7i - 5j N and B = 29j N be two forces acting on a body of mass 1 kg lying at rest at x = 2 cm, then what will be the displacement of the body after 2 seconds? ...

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We drive a distance of 1 km at 16 km/h. Then we drive an additional distance of 1 km at 32 km/h. What is our average speed? ...

A rocket is launched straight up with an initial speed of 40 m/s. It accelerated with a constant upward acceleration of 9.0 m/s^2 until the engine stops at an altitude of 350m. a. What is the maximum height reached by the roc ...

Two swimmers leave point A on one bank of a river to reach point B on the other bank. One of the swimmers swims along straight line AB while the other swims perpendicular to the direction of flow of the stream and walks the d ...

A particle is moving with speed of 1 cm s-2 in a circle of radius 4cm. Find; (a) time period of the particle What is this time period. ...

A capacitor of capacitance Ct = 1.0 F withstands the maximum voltage Va----6.0 kV while a capacitor of capacitance C2 = 2.0 F, the maximum voltage V----4.0 kV. What voltage will the system of these two capacitors withstand ...

The sum of two forces is 16N. The resultant is normal to the smaller force and has a magnitude of 8N. then give the magnitude of the 2 force. please Explain ...

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A balloon of mass 2Kg, experiences up thrust of 50N. A block of 1Kg is attached to the balloon and the system is released from rest from the top of the building of height 30m, after going up by 30m the block falls off. Find t ...

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*Image* D wheel shown in d diagram has a fixed axle passing thru O. D wheel is kept stationary under d action of i) a horizontal force F1 at A and ii) a vertical force F2 at B. Wich of d force F1 or F2 is greater? Find the ra ...

What is the magnetic field that exerts a force of 2.4 x 10 -4 newtons on a current of 12 amperes in a wire 30 cm , long set perpendicular to the field? ...

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the two ends of a train moving with a constant acceleration pass a certain point with velocities u and v respectively.what is the velocity with which the middle point of the train passes the same point? ...

A particle of charge q and mass m is moving in a circular orbit of radius r with angular speed ω. Another particle of charge 2q and mass 2m is moving in a circular orbit of radius 2r with the same angular speed ω. Let μ1 a ...

When an uncharged CONDUCTING ball of radius R is placed in a uniform electric field, surface charge density σ=σ°cosθ is induced on ball's surface where σ° is a constant What is the magnitude of resultant ELECTRIC FORCE ...

Masses of the pulley and thread are negligible C is the angle of inclination. What is the accn of Wedge? *Image* ...

AB and CD are the plates of a parallel plate capacitor, having 2 dielectrics inserted between them as shown, of constants K1 and K2. Separation between the plates is d and edge length a. Find the capacitance *Image* ...