Mass of a particle depends on its speed . Does the attraction of the earth on the particle also depend on the paricle's speed ?

On what does the reaction time depend ?

On which does the heat in a substance depend ?

A particle is kept fixed on as turntable rotating uniformly. As seen from the ground the particle goes in a circle,its speed is 20 cm/s and acceleration is 20 cm/s^2 The particle is now shifted to a new positon to make the radius half of the original value. The new values of the speed and acceleration will be

A particle is kept fixed on as turntable rotating uniformly. As seen from the ground the particle goes in a circle,its speed is 30 cm//s and acceleration is 30 cm//s^2 The particle is now shifted to a new positon to make the radius half of the original value. The new values of the speed and acceleration will be

Why charged particle attracts light particles ?

A particle moves with deceleration along the circle of radius R so that at any moment of time its tangential and normal acceleration are equal in moduli. At the initial moment t=0 the speed of the particle equals v_(0) , then th speed of the particle as a function of the distance covered S will be

A very small groove is made in the earth, and a particle of mass m_(0) is placed at (R)/(2) distance from the centre. Find the escape speed of the particle for that place.

a narrow tunnel is dug along the diameter of the earth, and a particle of mass m_(0) is placed at R/2 distance from the centre. Find the escape speed of the particle from that place.