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The left ventricle of the heart accelerates blood from rest to a velocity of + 24.4 cm/s.
(a) If the displacement of the blood during the acceleration is + 2.18 cm, determine its acceleration (in cm/s2).
(b) How much time does blood take to reach its final velocity?
A 5.00 kg chunk of ice is sliding at 13.0 m/s on the floor of an ice-covered valley when it collides with and sticks to another 5.00 kg chunk of ice that is initially at rest. how high above the valley floor will the combined chunks go
A gymnast was practicing an airborne movement and you filmed it in two dimensions. the mass of the lower body of the gymnast is 15kg, the mass of the trunk and arms is 20kg, and the mass of the head is 8kg.
A 0.15 m wire carrying a current of 250 mA downward passes through a uniform magnetic field of 30 mT directed to the right. What is the magnitude and direction of the force exerted on the wire by the magnetic field
Consider a uniformly charged rod of length L and charge Q. Find an expression for the electric potential
At what angle are the photons scattered such that the electron’s velocity is 1% of the speed of light when the incoming light has wavelength λ = 0.05nm? For the same incoming photons, what is the photon scattering angle such that the electrons hav..
An 81 kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 3.1 x 10-2 m3, What is the density of the life jacket
A source traveling to the right at a speed of 11.30 m/s emits a sound wave at a frequency of 104.0 Hz. The sound wave bounces off of a reflector, which is traveling to the left at a speed of 4.95 m/s. What is the frequency of the reflected sound w..
a 115 granite cube slides down a 40 frictionless ramp. at the bottom just as it exits onto a horizontal table it
Red light of wavelength 633nm from a helium-neon laser passes through a slit 0.370mm wide. What is the width of the central bright fringe?
A loaded ore car has a mass of 955 kilogram and rolls on rails with negligible friction. Find what total energy transfers out of the motor by work by the time the car moves off the end of the track, which is of length 1300 meter
A typical coal-fired power plant burns 350 metric tons of coal every hour to generate 720MW of electricity. 1 metric ton= 1000 kg. What is the power plant's thermal efficiency
Assume the magnitude of the electric field on each face of the cube of edge L = 1.01 m, Determine the net electic flux through the cube
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