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A block of mass m=5.0kg is attached to a spring with springconstant k=8.0 N/m. The block is pushed so that it compresses thespring and gains speed. At t = 0 the block is releasedat x = -0.75 m with a velocity v = -2.5 m/s
a.) what is the soonest time after t = 0 that the block is atposition x = -0.75?
b.) What is the amplitude of oscillation?
c.) Find the velocity of the block at t =3.0s.
In a PET scan, an electron and positron annihilate each other, creating two (massless) photons. What is the kinetic energy of each photon in this case
A particle is displaced in 0.92 s from point A to point B with a uniform speed of 4.8 m/s via a circular path of radius 3.8 m centered at the origin. Obtain the average acceleration of the particle
The blood flow rate through the aorta is typically 95 cm3/s, and a typical adult has about 5.1 liters of blood. what is the speed of blood as it flows through the aorta
Use this technique to find formula for the intensity of a sound, in terms of sound level and the reference intensity. There will be a quantity involved in the calculations. When you enter your answer, leave off the unit.
The space shuttle orbits at a distance of about 300 km above the surface of the earth. Find the speed of the shuttle
A volume of 7.2 m3 of glycerol (η = 0.934 Pa. s) is pumped through a 15 m length of pipe in 55minutes. The pressure at the input end of the pipe is 8.6 x105 Pa, and the pressure at the output end isatmospheric pressure. What is the pipe's radius?
Suppose you cycle 10.0 km to the east and 15.0 km north to get to a shopping mall from home. what is the direction the the pigeon should fly and how far must it travel to get home in the shortest time
A current I = 13.0 A flows through a strip of metal of width 4.0 cm, What is the drift velocity of the carriers in the strip
The linear density of a rod of length 4 m is given by p(x) = 9 + 2sqrt(x) measured in kilograms per meter, where x is measured in meters from one end of the rod. Find the total mass of the rod.
A car of mass 2,000 kg is initially traveling at a speed of 30 m/s. estimate the change in the kinetic energy of the car
Consider a heat pump which is used to cool down a home during the summer. Its coefficient of performance in cooling mode is 4.14. at what rate does it remove heat from the home
A double-slit experiment is set up using a helium-neon laser (?=633nm). Then a very thin piece of glass (n=1.50) is placed over one of the slits. How thick is the glass
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