Questions and answers by

Sushmitha

Questions (33)

Which law of chemical is illustrated by the fact that 168g of iron with 72g of water to form 232g of ferric oxide And 8g
1. 0 answers
2. 437 views
Your grandmother opened an investment account of $1,000(initial deposit) 15 years ago.Today it's worth $39,533.32 What is
1. 1 answer
2. 586 views
Can two elements both be oxidized in a reaction?2FeS + 4.5O2 +2H2O==> Fe2O3 + 2H2SO4 I see Fe is oxidized, going from Fe+2 to
1. 1 answer
2. 559 views
Dr. Bob222,Please see my additional posts on Jan 20 at 2:26pm and Jan 21 at 12:33 am. This is in reference to the redox
1. 4 answers
2. 946 views
In the redox reaction:2FeS + 4.5 O(subscript 2)+ 2H(subscript 2)O > Fe(subscript 2)O(subscript 3) + 2H(subscript 2)SO(subscript
1. 3 answers
2. 518 views
The 7 inch diameter drive drum of a belt conveyor is turning at 130 rpm.What is the belt speed (ft/min) if there is no slip
1. 1 answer
2. 536 views
The 7 inch diameter drive drum of a belt conveyor is turning at 130 rpm.What is the belt speed (ft/min) if there is no slip
1. 0 answers
2. 460 views
What is the tip speed (ft/min) of a 21 inch long rotary lawn mower blade that is connected to the output shaft of an engine
1. 1 answer
2. 455 views
under the influence of its drive force, snowmobile is moving at constant velocity along a horizontal patch of snow. When drive
1. 0 answers
2. 724 views
A diagram has vector A at 30 degrees above the positive x axis. length = 3 mVector B is ON the negative x-axis. length = 1 m
1. 1 answer
2. 739 views
A duck has a mass of 2.8 kg. As the duck paddles, a force of 0.05 N acts on it in a direction due east.In addition, the current
1. 1 answer
2. 1,197 views
demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur
1. 0 answers
2. 524 views
demand for sulfur dioxide by coal-fired electricity electricity producers is:Firm A's demand: P= 1,000 - 80 Q Firm b's demand:
1. 0 answers
2. 522 views
demand for sulfur dioxide by coal-fired electricity electricity producers is:Firm A's demand: P= 1,000 - 80 Q Firm b's demand:
1. 0 answers
2. 524 views
demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur
1. 0 answers
2. 576 views
demand for sulfur dioxide by coal-fired electricity electricity producers is: P= 1,000 - 16Q where Q is quantity of sulfur
1. 0 answers
2. 512 views
5^(-x+3) = 64I have only had exponents to the x, not with +3 too.
1. 1 answer
2. 375 views
A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C.If the thermometer reads 15
1. 1 answer
2. 600 views
A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C.If the thermometer reads 15
1. 2 answers
2. 2,012 views
A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C.If the thermometer reads 15
1. 1 answer
2. 789 views
A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C.If the thermometer reads 15
1. 1 answer
2. 657 views
solve system of equations:y = 2x^3 - 2x^2 y = -6x^2 +30x I know (0,0) is one point. How do I get others?
1. 2 answers
2. 379 views
open box made from 33 x 33 inch sheet of metal by cutting out x-inch square from each corner and folding up the sides.What size
1. 4 answers
2. 1,459 views
cannon fired ffrom top of 50 ft hill.height of shell above water: h = -0.0000167x^2 + 0.23x + 50 where x is horizontal distance
1. 1 answer
2. 479 views
Assume r and s are the roots of the quadratic equation ax^2 + bx + c = 0, show that r + s = -b/a and rs = c/a.
1. 1 answer
2. 417 views
if three resistances in parallel circuit are all equal, the total resistance is ___ the resistance of any on branch.
1. 1 answer
2. 484 views
if three resistances in parallel circuit are all equal, the total resistance is ___ the resistance of any on branch.
1. 1 answer
2. 1,221 views
Three identical resistors are connected in series to a battery.The voltage drop across one of the resistors is ___ times the
1. 1 answer
2. 1,836 views
Electric power is found by multiplying ___ by current.volts? potential difference? The kilowatt hour is a unit for measuring
1. 1 answer
2. 460 views
I need help with two questions:1) An object can only have a charge that is an integral multiple of the charge on the ___. Am I
1. 2 answers
2. 1,045 views
use an inverse trig function to write theta as a function of x(There is a right triangle drawn. The hypotenuse is 2. Theta is
1. 2 answers
2. 4,469 views
use an inverse trig function to write è as a function of x(There is a right triangle. The hypotenuse is 2. è is the angle
1. 0 answers
2. 625 views
1)If I am to plot a graph of Force in Newtons vs. Stretch in meters, would the x axis be force or the stretch?2) The data table
1. 1 answer
2. 692 views