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An intern pushes a 72 kg patient on a 15 kg gurney, producing an acceleration of 0.60 m/s2. How much work does the intern do by pushing the patient and gurney through a distance of 2.5 m
The rms current in a copy machine is 5.26 A, and the resistance of the machine is 19.7?. find the peak power delivered to the machine
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 15.4 L of fresh water at 20 °C with an a
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 3.9 minutes
A 119.6ml sample of 0.110M methylamine (CH3NH2) is titrated with 0.255 M HNO3 . Calculate the pH after the addition of each of the following volumes of acid.
An electric blanket is connected to a 120-V outlet, What is the resistance of the heater wire in the blanket
Calculate oxalate ion in the resulting solution. volume change is negligible Calculate the Kb for the reaction that occurs when solid sodium oxalate is dissolved in water
An engine is built to extract power from the temperature difference in the ocean. what is the maximum theoretical efficiency of such an engine
2-Methyl-1-propanol is more soluble in water than is glycerol because 2-methyl-1-propanol forms fewer hydrogen bonds with water. Glycerol is more soluble in water than is 2-methyl-1-propanol because g
Find emperical formula 0.25 mal of Iron atoms combined with 0.33 mal of O atoms. Find emperical formula
A soccer player kicks the ball toward a goal that is 23.0 m in front of him. Find the speed of the ball when the goalie catches it in front of the net
A swimmer, capable of swimming at a speed of 1.50 m/s in still water (i.e., the swimmer can swim with a speed of 1.50 m/s relative to the water), How long does it take the swimmer to cross the river
dinitrogen pentaoxide has 8.24 x10^20 molcules, how many gram of dinitrogen pentaoxide prsent
A tiger leaps horizontally from a 6.5 m high rock with a speed of 4.1 m/s. How far from the base of the rock will she land
Main group elements often attain a filled outer level (either eight electrons or two) by forming ions with the electron configuration of the nearest noble gas
Water is being pumped 100 meters up a hill through a hose at a rate of .012m^s/s. what is the water pressure at the bottom of the hose
A Carnot engine whose high-temperature reservoir is 400K takes in 520 J of heat at this temperature in each cycle, compute the temperature of the low-temperature reservoir
The mineral galena is composed of lead (II) sulfide and has anaverage density of 7.46 g/cm3.(a) how many moles oflead(II) sulfide are in 3.58ft3 of galena b. How many Lead (ii) atoms are in 1.99dm3
Copper (II) Iodate precipitates from iodate solution. The formula of the precipitate is Cu(IO3)2. A saturated solution of this substance was made in 0.01 M KlO3. The copper concentration was found t
Using a Time Domain Reflectometry (TDR) probe (rod length 30 cm) to estimate the soil water content of a wet sandy loam soil. alculate the volumetric wetness of the soil using the Topp and Davis (1985
A 10 nC point charge is at the center of a 2.0m x 2.0m x 2.0 mcube. What is the electric flux through the top surface of the cube
Write the chemical equation describing solubility equilibrium and the solubility product constant expression for Cu(IO3)2(s) and Ba3(PO4)2(s)
The mitochondrion has two membranes, the inner and outer- the outer membrane is porous and enables many molecules to freely diffuse. The inner membrane is different from the outer membrane as it is
the R isomer of limonene has an optical rotation, alpha,of +123 degrees the S isomer has an optical rotation, alpha, of -123 degrees. IF the observed rotation of a mixture of the R and S isomer resu
Coffee filters behave like small parachutes, with a drag force that is proportional to the velocity squared, Fdrag = Kv2. Find the time for the combined filters to reach the ground