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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.
A 5.25\; kg block starts at the top of a 12.1\; m long incline that has an angle of 10\deg to the horizontal. How much Kinetic Energy was lost in the collision
A generator has a 170-turn square coil, 4cm on a side. Find the peak emf in this coil when it's rotating at 95.0Hz in a strong 6.1T field
Three charged particles are arranged on corners of a square as shown in the figure below, with charge, What is the direction of the electric field at the upper right corner, which is a point in empty space
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.703 A) sin [(257 rad/s)t]. What is the average power delivered to the light bulb
A particle (M1 = 1.47 kg) moving at 30.0° downward from the horizontal with v1 = 2.53 m/s hits a second particle (M2 = 3.47 kg), What is the speed of M2 after the collision
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
A roller coaster shown below is built in your town. The radius of the circular part is 20 meters. As a physics student, you are invited to take the first ride. Find the speed of the car at the top of the circle
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
David is driving a steady 25 m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 m/s^2 at the instant when David passes.
Two large parallel plates are separated by 0.90cmand carry uniform charge densities equal in magnitude and opposite in sign, Find the magnitude of the charge density on the plates
Fred and Barney are two electric charges that are initially held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they were..
a thin film of alcohol (n=1.36) lies on a flat glass plate (n=1.54). when monochromatic light, what is the thickness of the film
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