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A thin uniform rectangular sign hangs vertically above the door of a shop. The sign is hinged to a stationary horizontal rod along its top edge. The mass of the sign is 2.40 kg and its vertical dimension is 50.0 cm. The sign is swinging without friction, becoming a tempting target for children armed with snowballs. The maximum angular displacement of the sign is 25.0degress on both sides of the vertical. At a moment when the sign is vertical and moving to the left, a snowball of mass 400 g, traveling horizontally with a velocity of 160 cm/s to the right, strikes perpendicularly the lower edge of the sign and sticks there. (a) Calculate the angular speed of the sign immediately before the impact. (b) Calculate its angular speed immediately after the impact. (c) The spattered sign will swing up through what maximum angle?
Conclusion of photoelectric effect
A positively-charged subdivision is moving southward in a downward-directed uniform magnetic field. The magnetic force is the merely force if any acting on the particle. Throughout
WHAT IS THE FREQUENCY OF ULTRA SONICS
Determine the potential and field due to a short dipole of dipole moment 5.0 X 10 -16 coulomb-cm at a point distant 1 cm from it. (a) on its axis (b) on its perpendicular bi
For which of the following does the centre of mass lie outside the body 1. A pencil 2. A shotput 3. A dice 4. A bangle Solution) 4. bangle ; centre of mass of hollow objects
definetion and abstrec of positive clliper?
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When you think of magnetic materials, you possibly think of nickel, iron or magnetite. Distinct to paramagnetic materials, the atomic moments in these materials show very strong in
When a spherical body goes by a viscous fluid, it feels a viscous force. The value of the viscous force increases with the enhance in speed of the object falling under the function
Ask question #Minimum 100 words accepteThe centre of oscillation of a meter stick suspended about a transverse axis is located at the 15 cm mark. Determine at what other positions
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