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Suppose you are a Medieval knight attacking a castle with a cannon. The ball leaves the cannon with a speed of 44.3 m/s. The barrel angle with respect to the surface is 37.5o, and you make a perfect hit on the tyrant's chamber which is at the same level as the cannon's muzzle. Evaluate the time of flight of the cannon ball?
Density of Aluminium is 2.7g/cm3 or 2.7g/ml. How heavy (in grams) would be the coke can if instead of soda it would be filled in with aluminium? The volume of a soda can is 303 ml.
A force in the negative direction of an x axis is applied for 34 ms to a 0.40 kg ball initially moving at 14 m/s in the positive direction of the axis. What is the direction of the impulse on the ball
Sound propagating through air at 30oC passes through avertical cold front into air that is 4.0oC. If the soundhas a frequency of 2400 Hz, by what percentage does its wavelength change in crossing the boundary?
A simple pendulum of length l and mass m is attached to a massless spring with elastic constant k. The attachment point moves only in a vertical direction. Obtain the Hamiltonian for the system
A uniform ladder of mass (m) and length (L) leans against a frictionless wall. If the coefficient of static friction between the ladder and the ground is 0.51, what is the minimum angle (theta) between the ladder and the floor at which the ladder wil..
A 5.5 kgdog stands on a 19 kg flatboatat distance D = 6.1 m from the shore. It walks 2.0 m along the boattoward shore and then stops. Assuming no friction between the boatand the water, find how far the dog is then from the shore.
An AC generator with a frequency of 120 Hz and an rms voltage of 20 volt is connected in series with 12 k(omega) resistor, What are the rms and maximum current in this circuit
A 150 pF capacitor is charged to a potential difference of 64 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
An object with a mass of m = 5.3 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.255 m and mass of M = 3.00 kg, Determine the speed with which the object hits the floor
Three equal point charges, each with charge 1.35 mu C, are located at the vertices of an equilateral triangle whose sides are of length 0.60m. What is an electric potential energy U of the system? (Take as zero the potential energy of the three ch..
The body in the figure is pivoted at O, and two forces act on it as shown. If r1 = 2.65 m, r2 = 2.20 m, F1 = 4.24 N, F2 = 5.71 N, ?1 = 63.0°, and ?2 = 55.0°, what is the net torque about the pivot
Flying due east, the plane flies with the rotation of the Earth, while flying due west, it flies against the rotation. Will the flight times be the same? Different? Why?
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