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An astronaut in deep space is taking a space walk when the tether connecting him to his spaceship breaks. How can he get back to the ship? He doesn't have a rocket propulsion backpack, unfortunately, but he is carrying a big wrench.
a piston with mass m 2.0 kg in a car engine is in vertical simple harmonic motion with amplitude a 5.0 cm. if the
A constant force, F = (4.51, ?3.79, 2.30) N, acts on an object of mass 18.2 kg, What is the total work done by this force
A flute player hears four beats per second when she compares her note to the 523 tuning fork (the note C). She can match the frequency of the tuning fork by pulling out tuning joint to lengthen her flute slightly. What are the three possible value..
a parallel-plate capacitor has circular plates of 8.90 cm radius and 1.70 mm separation.a calculate the capacitance.b
A certain molecule has a dissociation energy of 4.69 eV. What is the minimum frequency photon that can dissociate it in PHz (peta Hz, 1015 Hz) to two decimal places
It is determined by immersing a crown in water that its volumeis 26 in.3 = 0.0015 ft3. What would its weight be if it were made of pure gold
A toroid of mean radius 27 cm and circular cross section of radius 1.7 cm is wound with a superconducting wire of length 1000 m that carries a current of 350 A. What is the magnetic field at the mean radius
A bicycle wheel has a diameter of63.1 cm and a mass of 1.85 kg. What force is required if the chain shifts to a 5.65 cm diameter sprocket
A car is hauling a 88 kg trailer, to whichit is connected by a spring. The spring constant is 2150 N/m. The car accelerates with an acceleration of0.33 m/s2. By how much does thespring stretch?
a tugboat pulls a ship with a constant net horizontal force of 2720 newtons and causes the ship to move through a harbor. how much work does the tugboat do on the ship
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
A wave on the surface of the ocean with wavelength 44m is travelingeast at a speed of 18m/s relative to the ocean floor. If on, this stretch of ocean surface, a powerboat is moving 15m/s (relative tothe ocean floor), how often does the boat encoun..
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