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An aircraft weighing 983 N is accelerated at 12 m/s/s for 13 seconds, at which time the aircraft launches. How much work was done on the aircraft? The acceleration is constant.
Hint: This is a multiple step problem in which you must derive the variables needed (mass and distance under constant acceleration) in step one and then apply those values to the final solution of the problem in step two, that is calculate the work done.
The frictional diameter of the collar is 0.039 mm. Find the overall efficiency.
In a series circuit, a generator (1384 Hz, 14.4 V) is connected to a 17.1-? resistor, a 3.69-µF capacitor, and a 5.72-mH inductor. Find the voltage across each circuit element
To what distance x can a person who weighs 411-N walk on the overhanging part of the plank before it just begins to tip.
In a slow-pitch softball game, a 0.200-kg softball crosses the plate at 20.0 m/s at an angle of 40.0° below the horizontal. Determine the impulse delivered to the ball
A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.67 m above the bottom of the chute and with an initial speed of 1.97 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding a..
Suppose the rotational kinetic energy of a solid disc is 1000 J when the disk has an angular velocity of 3 rad/s. What is the disk's moment of inertia
In a Young's double slit experiment, the seperation between the slits is 1.20x10-4m; and the screen is located 3.50 m from the slits. What is the wavelength of the light used in this experiment
a 5kg Potter's wheel (model as a disk) with radius 0.3m is spinning at 5 rad/s. what is the mass of the clas
An ac generator with a frequency of 125Hz and an rms voltage of 21.5V is connected in series with a 15.0kohm resistor and a 0.280µF capacitor. What is the rms current in this circuit
Suppose the cloud of atoms is cooled to one micro-Kelvin. Calculate the root mean square speed of the rubidium atoms. [The atoms are at such low density that they remain in a (metastable) gas phase].
The field voltage is Vf = 220V. The viscous friction and no-load losses are negligible. The armature current may be assumed continuous and ripple free. Determine the back emf, Ea;
Static equilibrium Indicate the direction of positive rotation and the axis of rotation in this problem. What is the tension in the string? What is the full vector description of the force exerted by the hinge on the bar?
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