A 10 kg object has 100 J of Kinetic Energy. What is its velocity?

4.47

Explanation:

make use of the formula of kinetic energy

formula :

=

where m is the mass

v is the velocity

v = 4.4721

to 3sf

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.