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Question: A 1200 kg ore cart is rolling at 10.8 m/s across a flat surface. A crane dumps 493 kg of ore (vertically) into the cart. How fast does the cart move after being loaded with ore? Assume that frictional forces with the flat surface may be neglected.
Particles approximately 3.0 X 10-2 cm in diameter are tobe scrubbed loose from machine parts in an aqueous ultrasoniccleaning bath. Above what frequency should the bath be operated to produce wavelengths of this size and smaller?
An object moves at a constant velocity of 11 m/s to the southwest for an inverval of 20 s. Halfway through this interval, what is the magnitude of its instantaneous velocity
An 11.90 V battery is connected to a series circuit containing a 6ohm resistor and a 2.30 H inductor. The circuit is established and current is 1.9833 A. How long will it take the current to reach 50 percent of its final value? Answer in units of s
Miranda, a satellite of Uranus, is shown in part a of the figure below. It can be modeled as a sphere of radius 242 km and mass 6.68 1019 kg. Find the free-fall acceleration on its surface
A 2.20-uF capacitor is connected across an ac source whose voltage amplitude is kept constant at 60.0V but whose frequency can be varied, Find the current amplitude when the angular frequency is 100 rad/s
A small sphere of mass m= 7.60 g and a charge q1 = 29.9 nC is attracted to the end of a string, what is the smallest value d can have before the string breaks
A 1.5-m-long glass tube, closed at one end,is weighed and lowered to the bottom of a fresh-water lake. Determine the depth of the lake
A parallel plate capacitor is made with plates of 10 cm on a side, situated 0.1mm apart. what is the energy stored on the capacitor
q1. an object hangs from a spring balance. the balance indicates 40 n in air and 30 n when the object is submerged in
A transformer has a primary coil with 1200 turns and a secondary coil with 225.0 turns. what is the voltage output from the secondary coil
A 2.0 kg block is pushed against a horizontal spring and released. The spring sends the block sliding across a tabletop. find the distance to which the spring was initially compressed
A horse pulls a 300 kg wooden sleigh in the snow via a massless rope. The sleigh is towing a 50 kg wooden box behind it via another massless rope. What is the acceleration of the sleigh
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