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An object of 0.500 kg rests on the horizontal frictionless surface. It is in a position in such a way that it is compressing a spring a distance of 12.0 cm. When the object is released, the object l
A ball is thrown from the edge of a high cliff of 20.0 m having a speed of 20.0 m/s at an angle of 30.0° beneath horizontal. Find out the speed of the ball when it strikes the ground beneath the
The sky diver equipped with parachute falls from rest towards earth. Total weight of man and equipment is 160 lbs. Determine velocity of skydiver before parachute opens.
A car on the roller coaster begins at zero speed at an elevation over the ground of 26 m. It coasts down a slope and then climbs a hill. The top of the hill is at an elevation of around 16 m. Determ
The molecules of the vapor phase are found to effuse through a tiny hole at the 0.28 times the rate of effusion of Ar atoms under the same conditions of temperature and pressure.
Determine how fast does the shark encompass to swim perpendicular to the magnetic field of earth (B = 30 micro-teslas) in order to notice the magnetic field of earth with such organs?
What weight of hydrogen is needed to produce 51.0grams of ammonia? Ammonia can be produced industrially by the Haber process. The chemical reaction is 3H2 (g) + N2(g)-->2NH3(g).
What is the percentage yield of usable frosting when a particular recipe can make 225 grams of chocolate frosting? However, the cook cannot get the last 5.00grams in the mixing bowl.
Put a compass on the table. Now put a positively charged bar on the table east of the compass and slide it towards the compass, the compass needle will: Rotate either clockwise or counter-clockwise
When 3.00 grams of KClO3(s)is decomposed according to the reaction 2KClO3 2KCl(s) +3O2(g) what weight of oxygen is produced?
Determine the delta S (system) for reversibly cooling an ideal monatomic gas from 298K to 273K under constant-volume conditions. Discuss is this an increase or a decrease in the randomness of the s
You are holding one end of the elastic cord which is fastened to a wall 3.0 away. You start shaking the end of the cord at 2.8, making a continuous sinusoidal wave of wavelength 1.0m. Determine how
Determine how many seconds does it take to deposit 2.87 g Ni on a decorative drawer handle when13.1 A is passed through a Ni(NO3)2solution?
A ball of 100 g and a ball of 240 g are joined by a 34-cm-long, mass-less, rigid rod. The balls rotate around their center of mass at 120 rpm. Determine the speed of the 100 g ball?
What is the final temperature of water in the container if 50 g of ice and 85 g of water are at equilibrium in an insulated container? 47 kJ of heat are del =ivered to this mixture via
Explain how much plaster of Paris--(CaSO4)2* H2O-- could be made from the ton of gypsum if conversion was complete?
What fraction of the drug remains in the body after 13.0 hr if a no steroidal anti-inflammatory drug is metabolized with a first-order rate constant of 3.25 /day?
Suppose that the merry-go-round is a uniform disk having radius 2.5 m and consist of a mass of around 760 kg, and two children (each having a mass of around 23 kg) sit opposite to one other on the
How many different parade orders can you make? Suppose that all funny cars are evident from each other, which is sort of their point.
Determine the mathematical expression for the half-life of a second order reaction? Determine a pseudo-noble gas configuration? Give an example of one ion from Group 3A (13) that has it.
However, it is found that when the heavier mass is given a downward speed of 0.24m/s, it comes to rest in around 6.5 s. Determine the average frictional torque acting on the pulley?
Determine the resolved shear stress in the slip direction when a certain crystal is subjected to a tensile stress of 1.00 MPa with the normal to the slip plane of 75° to the tensile axis and th
An oxygen-containing compound which shows no IR peaks at1630-1780 or at 3200-3550 cm-1 is likely to be what type of compound.
Approximate the average force applied on the feet of person by the ground when the landing is with bent legs. If the legs are bent, suppose that the body moves around 60 cm during the impact.
If you could, discuss what is being oxidized and what is being reduced using the half-reactions, too?WO3(s) + (x/2)H2 (g) --> ??? ( HxWO3(s), but ifso what's the charge)