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A 3.00 kilogram object moving in the positive x-direction with a velocity of +5.00 m/s collides with and sticks to a 2.00 kilogram object initially moving in the negative y-direction with a velocity of -3.00 m/s. Evaluate the components of velocity of the composite object.
A dog searching for a bone walks 3.00 m south, then 8.20 m at an angle 30.0° north of east, and finally 14.0 m west. Find out the dog's resultant displacement vector using graphical techniques.
An athlete at a gymnasium holds a 3.0kg steel ball in his hand. His arm is 70cm long and has a mass of 4.0kg. Calculate the magnitude of the torque about his shoulder if he holds his arm
Neutron stars, such as the one at the center of the Crab Nebula,have about the same mass as our sun, but a much smaller diameter. If you weigh 650 {\rm N} on the earth, what would you weight on the surface of a neutron star that has the same mass ..
A seagull flies at a speed of 10m/s directly into the wind. Knowing that it takes the bird 25 min to travel 8km relative to the earth, find the velocity of the wind. How long will it take the seagull to travel a distance of 12km with the wind?
he catapult on an aircraft carrier can take an aircraft weighing 300,000 N from 0 to 84.1 m/s in 9.3 seconds, What is the acceleration of the aircraft when it launches
A small mailbag is released from a helicopter that is descending steadily at 1.50 m/s. After 2.00 s, what is the speed of the mailbag? How far is it below the helicopter?
When responding to sound, the human eardrum vibrates about its equilibrium position. Estimate what is the maximum acceleration of the eardrum
Three Identical stars of mass M from an equilateral triangle thatrotates around the triangles center as the stars move in a common circle about thatcenter. What is the speed of the stars
When you drive your car over a bump, the springs connecting the wheels to the car compress. Your shock absorbers then damp the subsequent oscillation, keeping your car from bouncing up and down on the springs. Figure shows real data for a car driven ..
The longest stuffed toy ever manufactured is a 420 meter snakemade by Norwegian children. What would be the projectile's initial speed
An open organ pipe and an organ pipe that is closed at one end both have langths of .52 m at 20 degrees celsius. What is the fundamental frequency of each pipe in hertz
A 70.0kg archer, standing on frictionless ice, shoots a 200g arrow at a speed of 200m/s. What is the recoil speed of the archer
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