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A 10 kg block is released from rest at the top of a 40 degree incline that is 4 m long. If the speed of the block at the bottom of the incline is 5 m/s. -Determine the coefficient of friction betwee
The radius of the container is 13 cm. When the cylinder is rotating at 2.2 revolutions per second, what is the magnitude of the centripetal acceleration at the outer wall.
A 2.30-g sample of a large biomoleculewas dissolved in 18.0 g of carbontetrachloride. The boiling point of this solution was determined tobe 77.85°C. Calculate the molar mass of the biomolecule.
Two long straight parallel wires are oriented in a north-south direction at the same height, 50.0 cm apart, and carrying currents of 8.00 A in opposite directions. Find the strength of the magnetic
A university physics professor buys 140 m of string and determines its total mass to be 0.170 kg . This string is used to set up a standing wave laboratory demonstration between two posts 3.0 m apa
In a Titration experiment, a student is given a weighed sample of a solid that contains a mixture ofKHC8H4O4 (KHP for short) and another salt that doesn't affect the pH of the solution.
A box contains 10000 gas molecules, 2500 of nitrogen and 7500 of argon in thermal equilibrium. The molecular weight of N2 is 28 g/mol, and of Ar is 40 g/mol. The total kinetic energy of the collecti
A rod in a steam jacket is measured to have a length of 0.600m. at a temperature of 22.0C Steam is passed through the jacket for several minutes until the rod is at a temperature of 98C. The increas
A 0.10kg dart is fired horizontally at the center of a 0.80kg vertically hanging block, sticking to it. The system reaches a maximum height, h, of 0.20m above the collision point. Find: the velocit
In the lab, a student tried tp prepare N,N-diethylacetamideby heating acetyl chloride with two equivalents of triethylamine.was the student successful? Explain.
A continuous stream of electrons flows along a long straight path through a piece of laboratory equipment: 4.750e+18 of them pass through the equipment each second. What is the strength of the magne
Using Ampere's-Maxwell's law determine the rate at which the electric field changes between the round plates of a capacitor, 3 cm in radius, if the plates are spaced 1.3 mm apart and the voltage acr
Rhodium is an element that has the appearance of silver, but it does not tarnish like silver, and because it is very hard, does not become worn or scratched like silver.
(a) What is the strength of the magnetic field inside the solenoid? (b) The solenoid carries a current of 10.0 A. How tightly wound is the solenoid, in loops per meter?
How high in meters must a column of water be to exert apressure equal to that of a 760 mm column of mercury? The density of water is 1.0 g/mL, where as that of mercury is 13.6g/mL.
If 5.00 g helium gas is added to a 1.00 L balloon containing 1.00 g of helium gas, what is the new volume of the balloon? Assume there is no change in temperature and pressure.
Resistances of 8 ohms and 12ohms are connected in parallel between points A and B. This combination is in series with another of resistances X ohms and 16 ohms in parallel between points B and C. Th
What is the pH at the midpoint of the titration of 50.0 ml of0.100 M acetic acid with 0.100 M sodium hydroxide? ka 1.74 x 10-5
A cable lifts a 1000 kg elevator at a constant velocity for a distance of 33 m. What is the work done by each of the following?
Bubba then throws a pebble down the same well so that it reaches the bottom of the well in 1.54 seconds. How fast did bubba throw the pebble down the well? How fast is the pebble moving that bubba t
A person is making homemade ice cream. She exerts a force of magnitude 20 N on the free end of the crank handle, and this end moves in a circular path of radius 0.32 m. The force is always applied p
Do the electrons flow from the zincelectrode to the nickel electrode or from the nickel to the zinc?e. In which directions do the cations and the anions migrate through the solution?
Billy bob is driving along one day talking on his cell phone instead of paying attention to what he is doing. He drives right off of a 25 foot cliff at 42 mph. What is the direction and magnitude of
This reaction calls for the use of 2.20 grams of acetanilde and 6.5ml of Chlorosulfonic acid and is later poured into 30ml of ice water. Suppose that only 1.6 grams of acetanilide is available.
The brakes of a truck cause it to slow down by applying a retarding force of 2.50 x 103 N to the truck over a distance of 910 m. What is the magnitude of the work done by this force on the truck? Is t