The number of forces that act on a book after being pulled by an string and start moving on a table is 1.
2.
3.
4

Rohit is trying to tune an instrument

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.