1. What is the effect of different types of oil on the amount of time it takes 1 point for the gears to reach a temperature of 30 degrees.
IV: time for gears to reach 30 degrees, DV type of oil
ОО
IV. type of oil, DV time for gears to reach 30 degrees
2. How does the air pressure in a ball affect the bounce height?
1 point
IV: bounce height, DV: air pressure
O IV: air pressure. DV: bounce height
Back
Next

answer: its c lololo

  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

answer; equivalent to a one(1) horsepower motor;

massxgravity x heght=weightxheight= pe

4900=490xh

h=10