Q1 what is the kinetic energy of an ideal projectile of

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Q1. What is the kinetic energy of an ideal projectile of mass 15.3 kg at an apex (highest point) of its trajectory, if it was launched with an initial speed of 42.5 m/s and an initial angle of 41.5° respecting the horizontal?

Q2. The tungsten filament of a light bulb has an operating temperature of about 2 100 K. If the emitting area of the filament is 1.0 cm2, and its emissivity is 0.68, what is the power output of the light bulb?

Q3. An airplane is flying in a horizontal circle at a speed of 0 90 m/s at the angle of 23.0 above the horizontal. When the plane is 115 m straight above a dog that is standing on level ground a suitcase drops out of the luggage compartment. How far from the dog would the suitcase land? You can overlook air resistance.

Reference no: EM13355443

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