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1. A girl delivering newspapers travels 1 blocks west, 2 blocks north, and then 6 blocks east.
(a) What is her resultant displacement?
2. A person walks 33° north of east for 2.33 km. How far would another person walk due north and due east to arrive at the same location? km due north km due east.
A very light rigid rod with a length of 0.500 m extends straight out from one end of a meter stick. Determine the period of oscillation
Explain why? Because when you go to the grocery store they do not take any recognition as a form of payment!" do you agree or disagree? Examine.
A 30.0g ball of clay traveling east at 1.00m/scollides and sticks together with a 30.0g ball of clay traveling north at 6.00m/s
Consider an alternating current of the form i(t) sin(2pit), where t is the time elapsed measured in seconds. (a) at what times is the magnitude of the current largest? (b) if this current were applied to a resistor, at what times would the magnitude ..
A resistance of ohms ,an inductive reactance of 8 ohms and capacitive reactance of 15 ohms are connected in parallel across 120V, Find total current , power factor
A patient is to be given a blood transfusion. The blood is to flow through a tube from a raised bottle to a needle inserted in the vein. How high h should the bottle be raised above the needle
A 2.2-kg mass attached to a spring oscillates with an amplitude of 9.0 cm and a frequency of 5.0 Hz. What is its energy of motion
A fisherman fishing from its highest to its lowest point. What is the speed of the waves going past the pier
A car wheel with a moment of inertia of 7.85 kg.m^2 is accelerating from 2160 rpm to 5040 rpm in a time of 10.0s. calculate The work done in raising the rotation frequency
Calculate the energy of the electron in the ground state of triple ionized beryllium, which has an atomic number Z = 4
A rock is projected from the edge of the top of a building with an initial velocity of 17.6 m/s at an angle of 31 degrees above the horizontal. The rock strikes the ground a horizontal distance of 93 m from the base of the building. The accelerati..
Thermal energy can shift some of the electrons in a hot semiconductor from valence levels to conduction levels. What effect do these shifts have on the semiconductor's ability to conduct electricity.
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