Is it better to wire a house using a series circuit or a parallel circuit?
A a series circuit because if one circuit is broken, then the other circuits will still work
B a series circuit because if one circuit is broken, then the other circuits will not work
C a parallel circuit because if one circuit is broken, then the other circuits will still work
D a parallel circuit because if one circuit is broken, then the other circuits will not work

C a parallel circuit because if one circuit is broken, then the other circuits will still work

Explanation:

Electrical devices can be connected in two different configurations:

- Series configuration: in this configuration, all the devices are connected along the same branch of the circuit. This way, the current flowing through the devices is the same for all the devices. Also, the total resistance of the circuit is equal to the sum of the individual resistances:

- Parallel configuration: in this configuration, the devices are connected in different branches of the circuit. This way, the current flowing through them is different, however they have same potential difference across them. In this case, the total resistance of the circuit is given by

The main advantage of the parallel configuration compared to the series configuration is that in a parallel circuit, if one component is turned off/broken, the other components will continue working, since they are connected on separate branches. Instead, in a series circuit, when one component is turned off/broken, al the others also stop working, since they are along the same branch.

So the correct answer is

C a parallel circuit because if one circuit is broken, then the other circuits will still work

  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

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.