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A 2600 kg truck traveling north at38 km/h turns east and accelerates to 50 km/h.?
1) What is the change in the truck's kinetic energy?
2) What is the magnitude of the change in the linear momentum of the truck?
3) What is the direction of the change in the linear momentum of the truck?
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
An electron microscope is designed to resolve objects as small as 0.32 nm. What energy electrons must be used in this instrument
A massless string runs around two massless, frictionless pulleys. An object with mass m = 12.20 kg hangs from one pulley. A force F is exerted on the free end of the string. What is the magnitude of the force F if the object is lifted at the constant..
As the earth rotates through onerevolution, What is the average speed of this person inmeters per second and miles per hour
a circular radar operates at a frequency of 8 ghz and has a diameter of 0.8 m.what is the angle at the half-power
Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, what is the expected angle of refraction in sheet 3
A model rocket is launched straight upward with the initial speed of 70m/s. It accelerates with a constant upward acceleration of 3 m/s2 until its engines stop at an altitude of 180 m.
A motorist drives along a straight road at a constant speed of 22.0 m/s. Just as she passes a parked motorcycle police officer, Find the speed of the officer as he overtakes the motorist
It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth
At a given instant the current and self-induced emf in an inductorare directed as indicated in the figure 30-63. The induced emf is23 V and the rate of change of the current is 24 kA/s; find the inductance in henrys.
A rectanbular tank is placed on wheels and is given a constant horizontal acceleration a. display that, at steady state, the angle made by the free surface with the horizontal is given by tan(delta)=a/g.
A bird sits on a high-voltage power line with its feet 5.2 cm apart. What is the potential difference between the bird's feet
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