A charge q = 2.4 µC is placed at the point P shown below. What is the force on q (in N)? (Assume the positive direction is to the right. Indicate the direction with the sign of your answer.)

The magnitude of force between two charges q_1\ and\ q_2 separated by a distance r is

F=\frac{k|q_1||q_2|}{r^2}

where k=9×109Nm2/C2

The magnitude of force on charge q=2.7μC=2.7×10-6C by charge 1.5μC=1.5×10-6C which is 2.4+1.2=3.6m away from point P is

F_1=\frac{9\times10^9\times|2.7\times 10^{-6}|\times|1.5\times 10^{-6}|}{3.6^2}

F_1=2.813\times 10^{-3}\ N

The magnitude of force on q by -3.5μC charge which is 1.2m away is

F_2=\ frac {9\times10^9\times|2.7\times 10^{-6}|\times|-3.5\times 10^{-6}|}{1.2^2}

F_2=59.063\times 10^{-3}\ N

We know that like charges repel each other and unlike charges attract each other. q is repelled by 1.5μC and attracted by -3.5μC.

F_1 points to the right it is positive, F_2 points to the left it is negative. The net force on q is

F=+F_1-F_2

F=2.813\times 10^{-3}\ N-59.063\times 10^{-3}\ N

F=-56.25\times10^{-3}\ N

In two significant figures the answer is

F= -0.056  N

Explanation:

the answer would be c. motion and direction

i hope this : )

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz