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A plate hits the floor and breaks into 2 pieces. The first piece has a mass of 0.2 kg and flies off at an angle of 30 degrees above the horizontal at 1.5 m/s. The second piece weighs 0.8 kg.
a. At Which direction does the second piece go?
b. What is the magnitude of its velocity?
A horizontal force of 80 N acts on a mass of 6 kg resting on a horizontal surface. Calculate the total energy expended in the acceleration
A pilot claims to have seen a UFO moving initially at the speed of about 440 m/s in an easterly direction and then, in a tie interval of only 1.0s turning 45 degrees and moving souutheast at 440 m/s
Two identical pucks are placed on a collision course on an air table as shown. After the collision puck A has a final velocity of 5 cm per second, Determine the initial speeds of both pucks
A step-down transformer has 2000 turns on the primary and 300 turns on the secondary, what is the secondary voltage amplitude
q1. a person eats a dessert that contains 26o calories. this skin temperature of this individual is 38 degrees celsius
Water flows at 0.60 m/s through a 3.0 cm diameter hose that terminates in a 0.25 cm diameter nozzle. At what speed does the water pass through through the nozzle
If you weigh 670 on the earth, illustrate what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0?
A 3.0 mW laser produces a beam of light with a diameter of 2.6 mm shines its light on a perfectly absorbing surface. What is the radiation pressure exerted by the beam
A system performs 357 J of work on its surroundings while losing 133 J of internal energy. Determine the heat transferred to the system during this process
The switch in a series RL circuit in which R = 5.60 ?, L = 2.10 H, and ?V = 24.2 V is closed at t = 0.0 s. What is the maximum current in the circuit? What is the current when t = 0.375 s?
A 77.5 kg bobsled is pushed along a hor- izontal surface by two athletes. After the bobsled is pushed a distance of 5.0 starting from rest, Find the magnitude of the net force on the bobsled
The location of a particle is measured with an uncer- tainty of 0.11 nm. What is the minimum uncertainty in the velocity measurement
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