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You plan to fly a model airplane of mass 0.390 kg that is attached to a horizontal string. The plane will travel in a horizontal circle of radius 5.90 m. (Assume the weight of the plane is balanced by the upward "lift" force of the air on the wings of the plane.) The plane makes 1.30 revolutions every 3.20 s.
a.) Find the speed at which you must fly the plane.
b.) Find the force exerted on your hand as you hold the string (assume the string is massless).
What is the total hardness in mg/l as CaCO3. what is the total alkalinity in mg/l as CaCO3. what is the phenolphthalien alkalinity in mg/l as CaCO3. Calculate the total dissolved solids in mg/l. what is the ionic strength of water
A circuit consists of a resistor in series with an inductor and an ac generator that supplies a voltage of 115 V. Find the average power delivered in the circuit
Introduction that will include the brief details of the school chosen including its floor plan to cater for its ICT requirements, its ICT requirements emphasizing the networking and data communications, and the challenges for the solution(s).
In a series circuit, a generator (1436 Hz, 14.7 V) is connected to a 15.2-? resistor, a 3.85-µF capacitor, and a 5.47-mH inductor. Find the voltage across each circuit element
The specific heat of seawater is about 4.2 x 103 J/(kg*K), while the latent heat of vaporization (or evaporation) is about2.5 x 106 J/Kg. What do these figures including theirunits express? In the suptropics, the latent heat flux across thesea surfac..
A 64.0-kg person holding two 0.750-kg bricks stands on a 2.20-kg skateboard. Initially, the skateboard and the person are at rest. What is the recoil speed of the person
Earth-Moon Center of Mass The Earth has a mass of 5.98×1024kg, the Moon has a mass of 7.35×1022kg, How far from the center of the Earth is the Earth-Moon center of mass
If 25.00 mL of 0.20 M HCl is titrated with 0.20 M NaOH, what is the pH of the solution after the addition of 20.00 mL of NaOH?
Can anyone tell me Why does palpatory method give different reading of systolic pressure from auscultatory method?
If an electrode has a potential of -1.004 V with respect to a saturated calomel electrode, what is the potential with respect to a silver-silver chloride electrode
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road, How far has the bicyclist traveled during the entire trip and What is the average speed of the bicyclist for the trip
Two identical positive charges exert a repulsive force of 6.2 x10-9 N when separated by a distance of 3.6 x10-10 m. compute the charge of each.
In an atwood's machine, one block has a mass of .6kg and the other a mass of .56 kg. What is the direction of the net torque on the pulley
Draft Hypothesis and Design
a 15 g rubber bullet hits a wall with a speed of 150 m/s. What force did the wall apply to the bullet
A long, current-carrying solenoid with an air core has 1740 turns per meter of length and a radius of 0.0210 m. What is the mutual inductance of this system
It is found that a uniform amount of electrical flux is going through each region of a Gaussian surface shaped like a cube. What amount of charge is there inside the sphere
A 23 kg boom of length 6 m is supported by a cable that has a breaking tension of 1200N. The cable is perpendicular to the boom and is attached 4.5m from the pivot. What is the utmost load that can be suspended from the end of the boom.
Imagine that we define the rear end of a train 120 m long to long to define the origin X'=0 in the train frame and we define a certain track signal light to define the origin X=0 in the track frame. Where does this event occur in the train frame
a 71 kg baseball lplayer jumps straight up to catch a line drive. If the 140 g ball is moving horizontally at 28 m/s, what is his speed immediately after stopping the ball
When light of a certain waveleght is incident normally on a certain diffraction grating the line of order 1 ia at a diffraction angle 25 Degrees
Two small spheres of equal mass m are suspended from strings of length L. When the two spheres are each given an equal charge q they separate by a distance x, swinging out an angle theta from the vertical
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