Questions asked by Hp

Back to user's profile
A ball moving with velocity 20 m/s hit a wall vertically and followed the same path.If in this process its velocity becomes 20% of the previous value,find the coefficient of restitution?? Assume no effect of gravity on this horizontal motion
A particle is moving on a linear pathway whose acceleration varies as $a=2x$ (where, x is its distance covered) If it had started from rest(zero velocity when x=0),find an equation to suggest its velocity-displacement relationship? How to solve? Pls help
A particle undergoing S.H.M having its velocity ( $v$ ) and displacement from mean position ( $x$ ) relation plotted as a circle of equation $v^2 + x^2 =3$ Find,its angular velocity?
Slope of Force-position curve of a particle undergoing S.H.M is -4,find the mass of the particle if it has a time period of 0.2s ?
A transverse wave is given by the equation $y=y_0 sin 2pi(ft-x/lambda)$ The maximum particle velocity will be $4$ times the wave velocity if, A. $lambda =(pi y_0)/4$ B. $lambda =(pi y_0)/2$ C. $lambda =pi y_0$ D. $lambda =2 pi y_0$ ?
Two bodies of masses $m1$ and $m2$ are separated by a distance $R$ .The distance of the centre of mass of the bodies from the mass $m1$ is $A.(m2R)/(m1+m2)$ . $B(m1R)/(m1+m2)$ #C. (m1m2R)/(m1+m2) ?
In the solid state $PCl_5$ exists as, A. $[PCl_4]^(-)$ & $[PCl_6]^-$ B.covalent $PCl_5$ molecules only C. $[PCl_4]^+ & [PCl_6]^-$ ions D.covalent $P_2Cl_10$ molecules only ?
What is the phase difference between two simple harmonic motions represented by $x1=A sin(omegat +pi/6)$ and $x2=A cos omegat$ A. $pi/6$ B. $pi/3$ C. $pi/2$ D. $(2pi)/3$ ?
The stability if $Me_2 C=CH_2$ is more than that of $MeCH_2CH=CH_2$ due to A. Inductive effect of $Me$ group B. Resonance effect of $Me$ group C. Hyperconjugative effect of $Me$ group D. Resonance as well as inductive effect of $Me$ group ?
In a thermometer the ice point is marked as $10$ degree Celsius,and steam point as $130$ degree Celsius .What will be the reading of this scale when it is actually $40$ degree Celsius?