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A helicopter's velocity is given as v(t) = [-2t+100]m/s. Determine the position and acceleration functions given that x(0) = 9m. Also determine when the helicopter will reach it's maximum height & what that height is.
How many centimeters thick would the concrete need to be so that 18.0 per cent of the neutrons are transmitted.
A car takes 11 s to go from v = 0 to v = 80 m/s at about constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value must you use for a.
A 9-g bullet is fired from a rifle. It takes 3.30 10-3 s for the bullet to travel the length of the barrel, find the average net force exerted on the bullet
An isolated copper sphere of radius 3.00cm, initially uncharged, is illuminated with ultraviolet light of wavelength 180nm. what charge does the photoelectric effect induce on the sphere
During a cardiac cycle, the heart squeezes about 65g of blood on each contraction into the arterial circulation. what is the maximum force acting on the center of mass of the blood
Use Equation m
\(\sum_{}^{}A_{n}sin(nk_{1}z); n = 1, 3, 5.....\) Formula 1 Formula 2 Prove the following two statements using a method that makes use of the normal modes of a continuous string with appropriate boundary conditions, and is equivalent to the the Fo..
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 79.2 m/s at ground level. How long is the rocket in motion above the ground
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 240 C. Boltzmann's constant is 1.38066 × 10?23 J/K, What is the rms speed of helium
In a location where the speed of sound is 346 m/s, a 2000 Hz sound wave impinges on two slits 30 cm apart. At what angle is the first-order maximum located
A 5.080 kg block of wood rests on a steel desk, State the force of friction applied to the block by the table at the following times: t=0 and t>0
An empty storage tank has a volume of 140 ft3. What is the buoyant force exerted on it by the air
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