Yes, the time will matter. To calculate the final velocity of an object v ,with an inital velocity u,which is under a constant acceleration of a for a time t. We have the relation $$v=u+at$$ The ...

I'll explain on a basic level. The specialty of conductors is that it is made of atoms with loosely held electrons.The atoms that make the conductor is neutral but since the electrons are loosely held,...

The corrective lens produces an image at the near point (or further) so that the person can see it. In your question the object is at 24 cm but near point is 53 cm , So the person can see the image ...

Nothing will happen to the rotational Kinetic energy,since there is no friction there is no torque about the center of mass of the object and hence its angular velocity about center of mass must ...

I'll give a simple explanation. Potential difference is the difference of potential between 2 points (say A and B). Potential of any point would be the potential difference between that point and ...

The torque you get by using force*distance will be equal to Ia where I is the moment of inertia of system about axis of rotation and a in the angular acceleration of system about axis of rotation. In ...

Consider Newton's law on inertia. He states that a body tends to remain in its state of rest or motion unless there was a net force on the body. Here the block has no net force acting on it since ...

If initial height is $h_1$ ,then the Kinetic energy $KE_1$ of the ball just before the impact would be $mgh_1$ from conservation of energy.During the impact some non conservative forces act on the ...

The buoyant force will remain the same, The buoyant force is the net force that the liquid exerts on the body, this includes the force which acts on the bottom and the top(the red portion). We can ...

The pseudo force acts in the vertically downward direction if the acceleration is vertically up. If the acceleration is given in vector form as xi+yj then the pseudo force is m(-xi-yj). Where m is ...

R1 is the Radius of curvature of first surface and R2 of the second. Keeping Plane side as first surface $\frac{1}{R1}$=0 while R2=-R. Keeping Concave side as first surface , $\frac{1}{R2}$=0 while R1=...

In the derivation of Bernoulli's equation we consider a small element of a fluid so that we can assume that all fluid particles in the element has same pressure, velocity etc. The potential of this ...

The mass number is the number of nucleons as you said . The AMU is a unit that helps us to communicate weight of atoms in a better manner. eg) The mass of oxygen-16 atom is $2.65\times 10^{-26}$ kg. ...