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A man seeking to set a world record wants to tow a 130000-kg airplane along a runway by pulling horizontally on a cable attached to the airplane. The mass of the man is 88 kg, and the coefficient of static friction between his shoes and the runway is 0.80. What is the greatest acceleration the man can give the airplane? Assume that the airplane is on wheels that turn without any frictional resistance.
A student drops two metallic objects into a 120 g steel container holding 150 g of water at 25°C. One object is a 230 g cube of copper that is initially at 85°C, and the other is a chunk of aluminium that is initially at 5.0°C. To the surprise of the..
Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Determine the astronaut's orbital speed
What current must be in the solenoid so that the solenoid field just cancels Earth's 4.2 × 10-5-T magnetic field (used occasionally by the pigeons to determine the direction they travel)?
How deep must you dive in water in order for the pressureexerted on you to be twice as much as the pressure exeprted on youin normal conditions
As is known that the wavelength of yellow light from mercury is 578nm. What is the energy of photoelectron when it leave the surface of photocathode
Two plates are being discharged by a constant current. Each plate has a radius of 4.00 cm. Through the discharging, at a point among the plates at radial distance 2.00 cm from the central axis, the magnetic field has a magnitude of 12 nT.
A car is being pulled out of the mud by two forces that are applied by the two ropes. The dashed line in the drawing bisects the 30.0° angle.
Red light of wavelength 700 nm in vacuum enters diamond (n=2.4). The wavelength of light inside the glass is now
In the neck of the picture tube of a certain black-and-white TV set, an electron gun contains two charged metallic plates 2.60 centimeter apart. Find the time of flight as the electron passes between the plates
Calculate the magnitude of the planes acceleration. On a level road with its brakes on, a car traveling at 93 km/hr stops within 87 m when the brakes lock and the car slides.
A spring with an elastic constant of 26 N/m, and want it to oscillate once every 0.75 seconds. What mass would you need to attatch to the spring
if the caffeine concentration in a particular brand of soda is 1.99 mgoz drinking how many cans of soda would be
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