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King Arthur's knights fire a cannon from the top of the castlewall. The cannonball is fired at a speed of 57 m/s and an angle of37°. A cannonball that was accidentally droppedhits the moat below in 1.12 s.
How far from the castle wall does the cannonball hitthe ground?
What is the ball's maximum height above the ground?
a spring with an 7.9-kg mass is pulled back 0.25 m. if its frequency is 3.6 hz then find the position velocity and
for a double-slit experiment the inside edges of two 1.65-mm wide slits are separated by a distance of 1.31 mm. the
A charge q at the origin is at the back corner of an imaginary cube of edge length a. What is the electric flux through the shaded region (the plane at y=a)? (the picture that goes along with it shows a cube, and the side that is shaded is the vertic..
A rock is thrown vertically upward with a speed of 17.0 m/s from the roof of a building that is 70.0 m above the ground. Assume free fall. What is the speed of the rock just before it strikes the ground
A circuit consists of a 12.0-V battery connected to three resistors (44ohm , 17ohm and 110ohm ) in series. Find the current that flows through the battery.
In an ideal Rankine Cycle, steam exhausts a turbine at the rate of 10.1 million lbm per hour into a condenser at a temperature of 102 degrees F (Tsat for 1.0 psia), What is the rate of heat rejection by the condenser
The G string on a violin has a fundamental frequency of 196 Hz. It is 33.0 cm long and has a mass of 0.500 g. what is the effective length of her string
The immediate cause of many deaths is ventricular fibrillation, which is an uncoordinated quivering of the heart. An electric shock to the chest can cause momentary paralysis of the heart muscle, after which the heart sometimes resumes its proper ..
A house is 30.0 ft long and 25.0 ft wide, and has 8.0 ft high ceilings. What is the volume of the interior of the house
a van de graaff generator has a dome of radius 2.0 m. a motor causes a charged insulating belt to travel continuously
An explosive at ground level leaves a crater with a diameter that is proportional to the energy of the explosion raised to the (1/3) power; an explosion of 1 megaton of TNT leaves a crater with a 1 km diameter.
A f = 5 cm thin lens is to the left of a concave spherical mirror with a radius of curvature of magnitude 8 cm. The lens and the mirror are 20 cm apart, and an object is placed 8 cm to the left of the lens. Determine the position, orientation, and ma..
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