1.An object in equilibrium can be an object (pick the best answer) at rest moving with constant speed ,in a straight line having no acceleration (no change in motion) ,all of these. 2.Rita hangs from a pair of gym rings and the upward support forces of the rings will always
(read carefully)
each be half her weight
each equal her weight
add up to equal her weight
no way to know from the given information
3.A donkey pulls a cart East with a force of 1200. N and a man helps by pushing the back of the cart with a force of 400.N East. What is their combined forces on the cart? Do not consider friction for this question.
400.N East
800.N East
800.N West
1600.N East

10 is the . . .

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

Hi, your answer is not correct. this is a cumulative  

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