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A 55-kg vampire and 171-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 5 m/s and is directed upwards, while the vampire velocity at the moment of the collision is 12m/s and is directed down. They clash in mid-air exactly 8 meters above the ground. Vampire will starts feeding on werewolf at the moment of collision, and will not stop until they hit the ground. Find how long (in s) will the vampire feast on the werwolf? Calculate the answer to two decimal places.
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. The volume of the rock is 3.40 10-4 m3 and its mass is 3.87 kg. What percentage of the rock is gold by mass
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. what is the mass of the other isotope
Consider a capacitor created when two identical conducting plates are placed parallel and close to each in other in vacuum, what is the magnitude of the electrostatic force between the charged plates, Is the force attractive or repulsive
A piece of a cloth is found to contain 15% of the C-14 present in a similar material today. How old is this cloth
A 6.0 kg block of aluminum is heated from 20°C to 90°C at atmospheric pressure. Find the work done by the aluminum
A small object with mass 0.200 kg moves with constant speed in a vertical circle of radius 0.500 m. What is the translational speed of the object
Water flowing through a hose at 4 m/s fills a 900L child's pool in 8 min, What is the diameter in cm of the hose
The pilot of an aircraft wishes to fly due west in a 47.7 km/h wind blowing toward the south. What should its speed relative to the ground be
A series LR circuit contains an emf source of having no internal resistance, a resistor, a inductor having no appreciable resistance, and a switch. what is the resistance of the resistor
A point charge with a charge q1 = 2.60?C is held stationary at the origin. How much work is done by the electric force on q2
Use Ampere’s law to determine the magnetic field in a densely wound toroidal solenoid with inner radius a, outer radius b, and N total turns. The cross section of the solenoid is a rectangle of width b-a and height h.
How much horizontal force should a sprinter of mass 57.0 exert on the starting blocks to produce this acceleration.
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