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A certain aircraft has a liftoff speed of 126 km/h.
(a) What minimum constant acceleration does the aircraft require if it is to be airborne after a takeoff run of 244 m?
m/s2
(b) How long does it take the aircraft to become airborne?
A crate of mass 9.0 kg is pulled up a rough incline with an initial speed of 1.42 m/s. What is the change in kinetic energy of the crate
A helicopter lifts a 70 kg astronaut13 m vertically from the ocean by means ofa cable. The acceleration of the astronaut is g/10.
Find the length of a simple pendulum if its frequency for small amplitudes is 0.65 Hz
Compute the density of entropically raised element of air
At the position of the negative charge, what is the magnitude of the electric field due to the three positive charges? What is the magnitude of the attractive force on the negative charge
A pair of blocks of the mass M =25.9 kg, and 2 M are dragged over a rough, horizontal surface by two constant forces of magnitude F=72.0 N.How many forces are acting on the system
Determine the highest speed the stone can attain without breaking the string.
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
A 2.0 centimeter tall object is placed in front of a mirror. A 1.0 tall upright image is formed behind the mirror, 180 from the object. Find what is the focal length of the mirror
A 2.1 kg mass is attached to a 0.4 m long massless string andswings as a pendulum. what is the maximum tension in the string
A fisherman notices that his boat is moving up and down periodically, If the total vertical distance traveled by the boat were 0.450 m, but the other data remained the same, how fast are the waves traveling
An irregularly shaped object 10 long is placed with each end on a scale. how far from the left is the center of gravity
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