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A 1400 kg aircraft going 40 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 19.3 m/s after the collision. If they skid for 85.2 m before stopping, how long (in seconds) did they skid?
The electric motor of a model train accelerates the train from rest to 0.580 m/s in 33.0 ms. the total mass of the train is 563 g. Find out the average power delivered to the train during its acceleration. The units need to W for the final answer.
A car starts from x=10 m at t = 0 and moves with the velocity graph, What is the object's position at 1.69 s
In a double-slit experiment, the fourth-order maximum for a wavelength of 450 nanometers occurs at an angle of 90o. Find what range of wavelengths in the visible range
A student sits at rest on a stool that can rotate without friction. The moment of inertia of the student-stool system is 3.3 kg•m2. Find the resulting angular speed of the stool and the student
if the faucet has a constricted opening then the water may speed up there. but when it enters the hose which is larger
A person is standing in an elevator that is stationary. What is the weight of the person when the velocity is 3 m/s upward and the acceleration is 2 m/s^2 downward
An air-conditioning unit with a coefficient of performance of 2.93 provides 5,275 kJ h-1 of cooling while operating during the cooling season 8 hours per day
A second disk rotating clockwise with an angular speed of 9.70 rad/s falls from above onto Disk 1. The two then rotate as one in the clockwise direction with an angular speed of 2.40 rad/s. Determine the moment of inertia of Disk 2.
The system is released from rest with the rod horizontal. If the animals can manage to hold on, illustrate what are their speeds as the rod swings through a vertical position?
An air puck of mass .29kg is tied to a string and allowed to revolve in a circle of radius 1.4m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of .7 kg is tied to it. The s..
A diffraction grating is placed 1.00 m from a viewing screen. Light from a hydrogen lamp is passed during the grating, and the 656 nm line in the hydrogen spectrum is seen in first order 60.0 cm to one side of the center. Then the hydrogen lamp is re..
The moment of inertia of a 0.949 kilogram bicycle wheel rotating about its center is 0.131 kg x m2. Find the radius of this wheel, suppose the weight of the spokes can be neglected
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