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Q1. A basketball player achieves a hang time of .658 s in dunking the ball. What vertical height will he attain? The acceleration of gravity is 9.8 m/s2.
Q2. A flight attendant pulls her 73 N flight bag a distance of 245 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 54° above the horizontal.
(a) Find work she does on the flight bag.
(b) Find work done by the force of friction on the flight bag.
(c) Find coefficient of kinetic friction between the flight bag and the floor.
Determine the efficient spring constant of the molecule
A cube of ice is taken from the freezer at -8.0°C and placed in a 97 g aluminium calorimeter filled with 286 g of water at room temperature of 20°C. The final situation is observed to be all water at 19°C. What was the mass of the ice cube.
What pressure is acting on the walls of drum
Boat A negotiates a curve whose radius is 370 m. Boat B negotiates a curve whose radius is 120 m. Each boat experiences the similar centripetal acceleration. What is the ratio of speed of boat A to that of boat B.
Is the collision completely elastic
A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
The parallel metal plate of a capacitor is detached by a distance of 0.5cm and is connected to a 90v battery. Find the electric field between them and surface charge density on the plate.
Eight identical, non-interacting particles are placed in a cubical box of sides L = 0.2 nm. Find the lowest energy of the system (in electron volts) and list the quantum numbers of all occupied states if (a) particles are electrons and (b) particles..
What is the breaking strength
How much does the rocket clear the top of the wall
What is the final angular velocity
What is EMF in the secondary circuit
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