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William Tell shoots an apple from his son's head. The speed of the 129-g arrow just before it strikes the apple is 21.2 m/s, and at the time of impact it is traveling horizontally. If the arrow sticks in the apple and the arrow/apple combination strikes the ground 7.00 m behind the son's feet, how massive was the apple? Assume the son is 1.85 m tall.
Find the shear strain that results if a force of magnitude 8×10^5 is applied to the top square face of the plate, parallel to the side, and a force of equal magnitude is applied in the opposite direction to bottom face of the plate.
An elevator at the CN Tower in Toronto, Canada, What is the minimal power required for the motor of the elevator
A pair of speakers separated by 0.820 m are driven by the same oscillator at a frequency of 652 Hz. An observer originally positioned at one of the speakers begins to walk along a line vertical to the line joining the speakers.
An object is located 75.0 cm in front of a mirror and on the principle axis. The mirror is concave with a radius of curvature 50.0 cm. State the properties of the image
q1. a juggler performs in a room whose ceiling is a height 3.0 m above the level of his hands. he throws a ball upward
An insulating sphere of radius 5.00 cm centered at the origin, has a uniform volume charge density 3.08 uc/m^3. What is the electric field inside the spherical shell at 3.12 cm
How far does the car go before it stops. An advertisement claims that a sportscar can accelerate from rest to 100 km/hr in 7.70 s.
A 0.291-kg volleyball approaches a player horizontally with a speed of 12.2 m/s. What impulse is delivered to the ball by the player
A body is thrown vertically upward. when it passes a point H above its starting point, its velocity is 1/3 its initial velocity. How high does it rise above its starting point
A proton, an electron and an a particle, accelerated through the same potential difference enter a region of uniform magnetic field, moving at right angles to B. what are the radii of the proton and the a-particle path
A biologist keeps a specimen of his favourite beetle embedded in a cube of polystyrene plastic. What is the beetle's actual distance beneath the surface
An automobile weighing 1.80×104 N is moving with an initial speed of 64.0 km/hr along a flat highway. What is the time required to stop the automobile in the previous problem
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