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A cannon mounted on a pirate ship fires a cannonball at125 m/s horizontally, at a height of 17.5 m above theocean surface. Ignore air resistance.
(a) How much time elapsesuntil it splashes into the water?
(b) How far from the ship does it land?show your work
when landing from jumping up, a person should bend hisknees to avoid injury. A 75kg man just before contact withthe ground has a speed if 6.4m./s, what is the average force that actson him during this time
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field. What is the ratio of the radii of their circular paths
A 12-lb sledge hammer head falls a distance of 3-m hitting a0.30-g lead nail initially at a temperature of 22 degreesCelsius. what was the speed of the sledge hammer head just beforehitting the nail
a wire is carrying a current in the -x direction. What is the direction of the uniform magnetic field such that the magnetic force is maximized
Uranus requires 84 years to orbit the sun. Find Uranus's orbital radius as a multiple of Earths's orbital radius
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle. What is his predicted landing velocity
A converging lens and a diverging lens, separated by a distance of 20.5 cm, are used in combination. What is the focal length of the diverging lens
A future geosynchronous space station will be used to collect solar energy. The energy is transmitted back to earth as an electromagnetic beam. how large are the station's solar panels, assume 100% efficiency
a tightrope walker who weighs 640 n walks along a steel cable. when he is halfway across the cable makes an angle of
A 40.0-kg shell is fired from a gun with a muzzle velocity 85.0 m/s at 29.0o above the horizontal. What is the horizontal speed of the other fragment
The wavelength ?max at which the spectral radiancy of a cavity radiator has its maximum value for a particular temprature T is give by the Winch displacament law, or ?maxT=a constant (=2.898X10^-3 m.K). The efective surface tempratureof the sun is..
You pull with a force of 295 N on a rope that is attached to the block of mass 20 kg, and the block slides across the floor at a constant speed of 1.2 m/s. The rope makes an angle of 35 degrees with the horizontal.
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