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A Cessna aircraft has a lift-off speed of 120 km/h.
(a) What minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 270 m (in m/s^2)?
(b) How long does it take the aircraft to become airborne (in seconds)?
The current in an electromagnet connected to a 250 V line is 16.0 A. At what rate must cooling water pass over the coils if the water temperature is to rise by no more than 5.0 degrees Celsius?
The satellite relays a radio signal from a transmitter near the North Pole to a receiver, also near the North Pole. Traveling at the speed of light, how long is the radio wave in transit
Albert is pulling a 25.0 kg block up a hill which has an angle of ï?± = 15.50, calculate the work done by each force listed, and thus find the total work done on the block
Calculate the change in internal energy for each of the following systems: 100 joules of energy is added to a system that does 40 joules of external work
a 40-kg bookshelf requires a 100 n force to begin its motion. once moving it will requires a force of 60 n. what is the
A very slow neutron with negligible kinetic energy is captured by a 11B (boron-11) nucleus, which ends up in its ground state. Calculate the wavelength of the photon given off
the x-component of a velocity vector that has an angle of 32 degrees to the x-axis has a magnitude of 6.0 ms. what is
How much lift is exerted on the wings of an airplane that have atotal surface area of 102 m2 when the difference in air pressure below and above the wings is 4% of atmospheric pressure?
On August 19,1987, Alessandro Andrei set a world record in the shot put with a throw of 22.9 m (75 ft 2 in.). What was the maximum height the projectile reached above the ground
the lens of a slide projector with a focal length of 100.0 mm projects a slide onto a screen that is 10.0 m away. how
a 5.00-kg object moves clockwise around a 50.0 cm radius circular path. at one location the speed of the object is 4.00
What's the advantage of launching space vehicles from high flying aircraft in place of from the ground.
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