# 558 - Physics Questions Answers

The velocity of a particle is defined by Vx=100-t^(3/2) and Vy=100+10t-2t^(2) Where V is in m/sec and t is in seconds. The radius of curvature at the top of its path is?

An electric dipole moment p=(i-3j+2k)10^-29 Cm is at origin (0,0,0).The electric field due to this dipole at r=i+3j+5k (note p.r≠0) is parallel to ?

50gm ice at 0 degree celsius and 100gm water at 20 degree celsius are mixed, find final temperature and composition of the mixture.

In a region of space, a uniform electric field 𝐸⃗⃗⃗ , uniform magnetic field 𝐵⃗⃗⃗ and
uniform gravitational field 𝑔⃗ exist in mutually perpendicular direction. A charged particle is
moving with uniform velocity in this region. Once the particle leaves this region and another
where there is only 𝑔⃗ , its speed begins to decrease. How long after leaving the first region
does the velocity of particle reach the minimum value?