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A particle starts from the origin with velocity 9 m/s at t = 0 and moves in the xy plane with a varying acceleration given by = (9?t) m/s2, where t is in s. Answer the following using t as t as necessary. Determine the vector velocity of the particle as a function of time
A 76.0 kg boulder is rolling horizontally at the top of a vertical cliff that is 20.0 m above the surface of a lake, How far from the foot of the dam does the rock hit the plain
Consider the following chemical equation. H2(g) + I2(g) ? HI(g) Assuming all gases are at the same temperature and pressure, how many milliliters of hydrogen iodide are produced from 725 mL of H2
Prepare entries necessary to classify the amounts into proper accounts, assuming that all the securities are classified as available-for-sale and prepare the entry to record the accrued interest and the amortization of premium on December 31, 2010..
A brick is thrown at a speed of 72 mph at a wall that is 15 ft away. How much force does the wall exert on the brick and in what direction
The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine: 1) Cl2 ? 2 Cl (fast, reversible) 2) Cl + CHCl3 ? HCl + CCl3 (slow) 3) Cl + CCl3 ? CCl4 (fast) What rate law does this mechanism predict
What is the value of the rate constant at the temperature of this experiment? Give an answer with concentration units of molarity and time units of seconds.
Determine the per cent of unused indirect labour compared to available indirect labour hours. Draw conclusions from this analysis.
A fan blade is revolving at 20 cycles/s when someone turns off the fan. How long will it take for the fan blade to come to rest
Prepare journal entreis to record the first semiannual interest payment, assuming it uses the straight-line method of amortization
A projectile is red with an initial speed of 65:2 m/s at an angle of 34.5 degrees above the horizontal on a long at ring range. Determine The total horizontal distance covered
A singly ionized helium atom (He+) has only one electron in orbit about the nucleus. What is the radius of the ion
A spring whose stiffness is 1000 N/m has a relaxed length of 0.49 m. what is the change in the potential energy of the spring
An oscillating block-spring system has a mechanical energy of 1.00 J, an amplitude of 9.9 cm, and a maximum speed of 1.13 m/s. Find the spring constant
Compute the angular momentum of the earth arising from the following motions Earth's orbital motion around the sun
The maximum horizontal displacement of the pendulum bob from equilibrium is 3.00 cm. Calculate the quantum number n for the pendulum
An electron and a proton are each placed at rest in an electric ?eld of 334 N/C. What is the velocity of the electron 46.2 ns after being released
An ac series circuit has an impedance of 178 ? , and the phase angle between the current and the voltage of the generator is ? = -74°, find the capacitive reactance XC or the inductive reactance XL, whichever is appropriate
The pyramid depicted in the figure contains approximately 2.20 million stone blocks that average 3.00 tons each. Find the weight of this pyramid in pounds. (Please provide numerical answer in lbs)
A 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were ..
In Larry Niven's science-fiction novel Ringworld, a rigid ring of material rotates about a star. The inhabitants of this ring world live on the starlit inner surface of the ring, What is the length of a year on this planet
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
A 8000-kg car is traveling at 1.7 m/s along a horizontal road when the brakes are applied. How much kinetic energy does the car lose
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