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High-speed stroboscopic photographs show that the head of a200-g golf club is traveling at 55m/s just before it strikes a 46-ggolf ball at rest on a tree.After collision, the club headtravels(in the same direction) at 40m/s. What is the speed of the golf ball just after impact.
Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed, What will be the acceleration if you double your speed
What is the total contact force on the log by ropes 1 and 2 combined? (e) First give the magnitude of the N-S component of the combined contact forces of ropes 1 and 2. You have to decide for yourself if this combined component points North or Sou..
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A man of mass 86.5 kg and density 970 kg/m3 stands in a shallow pool with 39.1 % of the volume of his body below water
You throw a stone upward from the top of a building at an angle of 25° to the horizontal, How far from the base of the building does the stone land
The flash unit in a camera uses a 9 V battery to charge a capacitor.The capacitor is then discharged through a flash lamp. obtain the capacitance of the capacitor
A man of mass 76.5 kg walks down the aisle of an airplane at a speed of 1.10 m/s in the forward direction while the plane moves at a speed of 280 m/s relative to the earth
A curve of radius 72m is banked for a design speed of 125km/h.If the coefficient of static friction is 0.34 (wet pavement), at what range of speeds can a car safely handle the curve
The ball leaves the bat 2.0 ms later with a vertical velocity of magnitude 10 m/s. Illustrate what is the magnitude of the average force of the bat on the ball during the ball-bat contact?
On an essentially frictionless, horizontal ice rink, a skatermoving at 2.0 m/s encounters arough patch that reduces her speed by 49% due to a friction force that is 26% of her weight. Use the work—energy theorem to find the length of this rough pa..
A car is traveling at 10 m/s. How fast would the car need to go to double its kinetic energy? By what factor does the car's kinetic energy increase
A thin spherical shell of silver has an inner radius of 7.80 x 10-2 m, Find the change in the interior volume of the shell
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