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A marble is projected up along a 11 ° incline track at an initial speed of 2.2m/s and then coasts without friction.
(a) How long does it take for the marble to come to rest momentarily? s
(b) How far did the marble travel before it comes to its momentary rest point? m
The position of a 52g oscillating mass is given by x(t)= (2.5cm)cos12t , where t is in seconds. Determine the maximum speed and energy
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Two ocean liners, each with a mass of 40,000 metric tons, are moving on parallel courses, 92 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Care for the ships as ..
A flat circle of radius 20 cm is placed in a uniform electric field of magnitude 6.6×102N/C, What is the electric flux through the circle when its face is at 30 to the field lines
A uniform thin rod of length 0.65 m and mass 4.5 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before impact
A 28.0 {rm kg} child plays on a swing having support ropes that are 2.20 {rm m} long. A friend pulls her back until the ropes are 45.0^circ from the vertical and releases her from rest.
At a certain instant in time, in an electromagnetic wave, the electric field vector points to the north and the magnetic field vector points vertically downward.
You drop a 1.5 kg textbook to a friend who stands on the ground 10 m below the textbook with outstretched hands 1.50 m above the ground. What is the speed of the textbook when it reaches the hands? m/s
The maximum induced emf in a generator rotating at 249 rpm is 44 V. How fast must the rotor of the generator rotate
A solenoid is designed to prodcue a 2.78*10^-2 T magnetic field near its center. It has a radious of 1.4cm, What total length of wire is required to make this solenoid
If a 62.6 kg runner dissipates a power of 60.9 W during a race, explain how fast is the person running? Assume a running step is 1.50m in length
question1an electron is a subatomic particle m 9.11 times 10-31 kg that is question to electric forces. an electron
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