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Find the total electric charge inside the cube. In the charge configuration below, find the location (that is, x coordinate) where the electric field by the two point charges shown on the axis is zero. Note that O is the origin.
A 50kg driver sits stopped at a traffic light. Another car rear-ends her and causes her to accelerate at 16m/s^2. It all occurs in 0.25s. What is the impulse given to the driver
On a horizontal axis attached a flywheel and lightweight pulley with radius of 5 cm. On the pulleh is reeled with a cord, to which is hanged a weight with mass of 0.4 kg.
A light ray is directed at the inside of a highly polished silver hemispherical bowl and is incident parallel to the symmetry axis of the bowl. in what direction will it emerge from the bowl
How high is the balloon when the rock hits the ground?
A cat is running at 8.0 m/s and trying to catch a mouse, who has a tenth of the mass of the cat. What is the speed of the mouse
a 8.80 x 10-3 kg bullet is fired horizontally into a 2.37 kg wooden block attached to one end of a massless horizontal
A seed shoots out from the pod with the speed of 2.8 m/s but with a direction of motion 30° below the horizontal. What horizontal distance does it cover during its flight
A thin uniform rod m= 0.50kg ( swings about an axis that passesthrough one end of the rod and is perpendicular to the plane of the swing, What is the length of the rod
A tungsten wire has a radius of 0.065 mm and is heated from 20.0 to 1425 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1. When 190 V is applied across the ends of the hot wire, a current of 1.4 A is produced. How long is the w..
A beam of light is incident from air on the surface of a liquid. Ifthe angle of incidence is 30.0° and theangle of refraction is 21.0°, find the critical angle for the liquid
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 8.63 m, its velocity is (vx,vy) = (6.69,3.27) m/s.
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +20.5 rad/s. Then, the brakes are applied. In coming to rest, What is the angular acceleration of each wheel
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