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A 1.00 kg duck is flying overhead at 1.50 m/s. When a hunter firesstraight up. The 0.0100Kg bullet is moving 100m/s when it hits duckand stay lodged in the duck's body. What is the speed of the duckand bullet immediately after the hit?
on june 14 2005 asafa powell of jamaica set a worlds record for the 100-m dash with a time t 9.77 s. assuming he
An asteroid is seen in opposition from Earth once every 1000 days. What is the sidereal orbital period of the asteroid? What is the length of the semi major axis of the asteroids orbit?
If in addition to the magnetic field a constant electric field is now created within the region where the magnetic field is located so that the charge proceeds in a straight line and exits with velocity v2 = v, what must be the magnitude of this e..
A car starts from rest at a stop sign. It accelerates at 3.7 m/s^2 for 6.8s , coasts for 2.4s , How far apart are the stop signs
a 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 33 n. starting from rest
A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to ground.
A car crashes into a wall at 25 m/s and is brought to rest in 0.1s. Calculate the average force exerted on a 75-kg test dummy by the air bags
Find the magnification of the heater element given that the mirror has a radius curvature of 46 cm and produces an image of the coils 2.6m away from the mirror
A string under a tension of 60.0 N is used to whirl a rock in a horizontal circle of radius 2.70 m at a speed of 20.5 m/s on a frictionless surface as shown in the figure below. As the string is pulled in, the speed of the rock increases. When the st..
Water (density: 10^3 kg/m^3) flows at 15 m/s through a pipe with a raidus of .04m. What is the speed of the water flow of the pipe in the second floor
a hockey puck of mass m and radius r slides across frictionless ice. it has translational speed v to the right and
Two converging lenses, separated by a distance of 40.5 cm, are used in combination. The first lens, located to the left, has a focal length of 15.7 cm. Find the intermediate image distance relative to the corresponding lenses
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