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Question1
A shopper pushes a cart 49 m south down one aisle and then turns 90.0° west and moves 16 m. He after that makes another 90.0° turn and moves 18 m.
(a) what is the main possible displacement of the shopper? m ° counter clockwise from west
(b) What is the least possible displacement of the shopper? m ° counter clockwise from west
Question2
Two projectiles B and C are launched from ground level at the same angle above the horizontal. A little later they return to ground level one after the other. The launch speed of B is twice that of C. Neglecting air resistance; find out the ratio of the most height of B to that of C and the ratio of the range of B to that of C.
An observer inside the building notices that it takes 0.15s for the tile to pass her window, whose height is 2.20m. How far above the top of this window is the roof.
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A 25-? resistance is connected in series with a 30-mH inductance and a 12-µF capacitor, obtain the power dissipated in the circuit
What about the scheme itself: is it a good idea? Should you buy stock in this company?
According to the shop manual, when drilling a 12.1-mm-diameter hole in wood, plastic, or aluminum, a drill should have a speed of 1400 rev/min. find the maximum linear speed of any part of the bit
A .5Kg solid mass is totally submerged in water while suspended from a spring balance. Calculate the reading on the spring balance
There are 2 inclines A & B. Identical carts are placed on the top of each incline and release them from rest. Both inclines have the similar height and are friction less, but angles of the two incline are not the similar. Would carts acceleration ..
The current in a 100 watt lightbulb is 0.720A. The filament inside the bulb is 0.240mm in diameter. What is the electron current in the filament
A 0.65-g particle remains stationary when placed in a uniform electric field (on earth). What is the electric field's direction
A car owner forgets to turn off the headlights of his car while it is parked in his garage. how long will it take the battery to completely discharge
A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the water on the propeller, What is the acceleration of the 1400 kg boat
The small piston of a hydraulic lift has a raduis of 1 in and the large piston has a radius of 5 in. What is the weight of the heaviest vechicle that can be lifted
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