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Tarzan spies a 35 kg chimpanzee in severe danger, so he swings to the rescue. What are the frequency and amplitude (in degrees) of Tarzan's swing
Ammonium carbamate can dissociate into gases at 25 C according to the reaction: NH2COONH4(s) <--> 2NH3(g) + CO2(g) If sufficient ammonium carbamate is sealed in a flask, the total pressure wil
A 1350 kg cannon, which fires a 70 kg shell with a speed of 606 m/s relative to the muzzle, At what angle with the ground is the shell projected
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging
calculate the pH you would expect to measure if 15.0mL of 0.5M acetic acid were mixed with 25.0mL of 0.5M sodium acetate
An asteroid, whose mass is 1.70×10-4 times the mass of Earth, Calculate the period of revolution of the asteroid in years
Fluorine-18 is a radioisotope widely used in positron emission tomography to investigate brain activity. The half-life is 109.8 minutes. How long will it take for 2.75 ug of 18F to decay to 500 ng
A suitcase (mass m = 18 kg) is resting on the floor of an elevator. What pressure (in excess of atmospheric pressure) is applied to the floor beneath the suitcase
A husband and wife take turns pulling their child in a wagon along a horizontal sidewalk. find the magnitude of the pulling force exerted by his wife
The general rate law is: rate=k[A]^2. How long is the third half-life of the reaction if [A]0 is 0.080M and the first half life is 22 min
In order to calculate th number of ways of arranging a given amount of energy in a tiny block of copper, How many atoms are in the copper block
The following set of data was obtained by the method of initial rates for the reaction: S2O8^-2 + 3I^- --> 2SO4^-2 + I3^- Exp [S2O8^-2] [I-] Initial Rate (M s^-1) 1 0.25 0.10 9.00 x 10^-3 2 0.10
if you hold a 40 cm high square plane mirror 45 cm from your eyes, how far are you from the pole
Could you please explain to me the purpose and what's happening when we add the MTBE and then the NaHCO3? I know it has to do something with getting rid of carboxylic acid? and then getting rid of w
The first-order reaction SO2Cl2 --> SO2 + Cl2, has a rate constant of 2.20 x 10^-5 s^-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 2.00 hours
Bowling balls can be made from a vaiety of substances and are required to have a circumference of roughly 27.6 inches. calculate the thickness of the shell
A person pushes a 16.0 kg shopping cart at a constant velocity for a distance of 30.0 m. She pushes in a direction 26.0° below the horizontal. Determine the work done by the gravitational force
Aluminum dissolves in HCL according to the equation written below, whereas copper does not react with HCL: 2Al+6HCL ---> 2AlCl3 + 3H2 a 35 gram sample of copper-aluminum alloy is dropped into .75
a 20kg door is spun for 27 s at an anglular speed of 1.2 rev/s by two seperate simultaneous forces. One pushes with force of 53 N, What is the work done by torque spinning the door
when doing a synthesis of 2-chloro-2-methylbutane 1. Why must the reaction be carried out at room temp 2. Why is the crude product washed with sodium bicarbonate
a 250 kg merry-go-round is a solid disc with a radius of 1m when a 40 kg child sits at the center the angular speed is 6 rev/s
The vapor pressure of water at 25 degrees Celcius is 23.8mmHg ( use the equation for calculating the vapor pressure lowering. Raoult's law to get to moles
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree,as well as its height, How far away is the tree
A dentist's mirror is placed 2.4 cm from a tooth. The enlarged image is located 5.9 cm behind the mirror. How is the image oriented relative to the object
Ethylene glycol,C2H4(OH)2, is a colorless liquid used as automobile antifreeze. If the density at 20 degree Celcius of a 4.028m solution of ethylene glycol in water is 1.0241g/mL, What is the molari