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Blood from an animal is placed in a bottle 2.0m above a 3.5cm long needle, of inside diameter 0.40mm , from which it flows at a rate of 4.9cm^3/min. What is the viscosity of this blood? Assume pblood=1.05*10^3 kg/m^3.
A sphere of radius r starts from rest and rolls without slipping along a curved surface, dropping through a vertical distance of 0.596 m. Find the final speed v of the sphere's center of mass
A roughly spherical volume of rock 2.1 km in radius is 30% denser than the surrounding rock, calculate the gravitational acceleration it produces at Earth's surface
A 35 ? lamp and a 90 ? lamp are connected in series and placed across a potential of 40 V. What is the voltage drop across the first lamp
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
You are at the controls of a particle accelerator, sending a beam of 2.70×107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unk..
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is Save = 1.23×109 W/m2. What is the RMS value of the electric field
A 36 µF air-?lled capacitor is charged to apotential di?erence of 1099 V. What is the energy stored in it
A ball of 1.0 kg mass is tied to the end of a 1m string spinning at a speed of 7 m/s. What angle with the vertical axis does the string make
A gymnast of mass 56.0 {rm kg} hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume that the rope does not stretch. Use the value 9.81 {rm m/s^2} for the acceleration of gravity.
Explain how fast must the candy bar travel to have the same 106 joules in the form of kinetic energy?
A 5.0 kg bundle starts up a 30° incline with 128 J of kinetic energy. How far will it slide up the plane if the coefficient of friction is 0.40
What is the largest slit width for which there are no minima when the wavelength of the incident light on the single slit is436nm?
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