A tow truck pulls a car 5 km along a horizontal roadway using a cable having a tension of 850 N. How much work does the cable do on the car if it pulls horizontally? 4.25 x 103
о
4.17 x 1093
4.25 X 106]
o
7.15 x 106)

In each case the forces are constant and the displacement is along a straight line, so idk

Explanation:

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g