A 2500 kg elevator is suspended by a single cable, in which the tension is 30,000 N What is the weight of the elevator?

What is the net force on the elevator?

What is the acceleration of the elevator?

With mass 2500 kg, the elevator has weight

(2500 kg) g = (2500 kg) (9.80 m/s²) = 24,500 N

The net force on the elevator is 30,000 N - 24,500 N = 5500 N (because its weight pulls it downward, while the tension pulls upward).

The acceleration a of the elevator is obtained from Newton's second law,

(2500 kg) a = 5500 N

a = (5500 N) / (2500 kg)

a = 2.2 m/s²

  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

search it up!

explanation: