The diagram shows a motion map. a long black arrow pointed right labeled x. above that are 4 green arrows, each shorter ending in one dot. above the green arrows are 2 yellow arrows pointing left. farther up is 3 green arrow pointed left, each one longer. above the green arrows are 3 small yellow arrows pointing left. which best describes the motion of the object between 1 and 4 seconds?
a)the object has decreasing acceleration and increasing velocity.
b) the object has positive acceleration and eventually stops.
c) the object has decreasing acceleration and decreasing velocity.
d)the object has negative acceleration and eventually stops.

Did you ever figure out the right answers since you asked?

Answer: a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same sign as the  -4.0  µc charge.======electricstatic force between two point charges  is given by    where k is coulomb's constant,  8.99×10⁹  n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ =  6.0 µc, q₂ = -4.0  µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1  µc = 10⁻⁶ c)    the force from q₂    the force from q₃    the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃    isolating:     a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same as the  -4.0  µc charge

Simple, don't do it. just don't go to that dock

Ultra-high temperature (uht)