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As observed on earth, a certain type of bacterium is known to double in number every 18 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other placed on a rocket that travels at a speed of 0.968c relative to the earth. At a time when the earthbound culture has grown to 64 bacteria, how many bacteria are in the culture on the rocket, according to an earth-based observer? (Round your answer to the nearest whole number)
The air speed indicator of a plane that took off from Detroit reads 343 km/h and the compass indicates that it is heading due east to Boston. Calculate the speed of the plane with reference to the ground
A black hole attracts an object with mass m with a force of mc2RS/(2r2), where r is the distance between the object and the center of the black hole. What is the mass of this black hole
A gamma ray disappears in the process of creating an electron-positron pair. If the kinetic energies of the electron and positron are each 2.0 MeV, what was the energy of the gamma ray
The SI units of mass density are kg/m3, but there are several other common units. One of the most commonly used units of mass density is gram per cubic centimeter, or g/cc. What is the buoyant force on the mass
new york is roughly 3000 miles from seattle. when it is 800 a.m. in seattle it is 1100 a.m. in new york. using this
A 4 cm radius hose pumps out gasoline at a speed of 2 m/s in to an underground tank. what is the volume of the tank
The space shuttle typically travels in a circular orbit at an altitude of 500 km above the Earth's surface. Given that the value of g is 8.5 m/s2 at an altitude of 500 km, determine the value of the shuttle's speed in this circular orbit
An aluminum cup contains 225 g of water and a 40 g copper stirrer, all at 27°C. A 480 g sample of silver at an initial temperature of 87°C is placed in the water. The stirrer is utilized to stir the mixture gently until it reaches its final equilibri..
At 12 volt battery is connected in parallel with a 100,200,and 500 resistors. How much current flows through each resistors
When beryllium-7 ions (m = 11.65 x 10-27 kg) pass through a mass spectrometer, a uniform magnetic field of 0.327 T curves their path directly to the center of the detector, as in the drawing.
A bat at rest sends out ultrasonic sound waves at 50,000 Hz and receives them returned from an object moving directly away from it at 33.0 m/s. What is the received sound frequency
An airplane is flying with a velocity of 98.0 at an angle of 24.0 above the horizontal. How far from the dog will the suitcase land
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