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Solve the all parts of given question:
Question: An object is fired at 30 m/s at an angle of 35 degrees from a vertical cliff that is h meters (where h is an unknown quantity) above the sea. It is observed to hit the water 4.5 seconds after it was fired.
Part A: Calculate h, the height of the cliff?
Part B: Calculate the velocity vector of the object in polar form when it hits the water?
I want help to find the velocity vector of the object in polar form when it hits the water.
Two protons in an atomic nucleus are typically separated by adistance of 2.0*10-15 m. The electric repulsion force between theprotons is huge, but the attractive nuclear force is even strongerand keeps the nucleus from bursting apart. What is the m..
a river 8 km wide has a current with a speed of 3 kmhr. how much longer will it take a boat with a speed of 5 kmhr to
A tennis ball is struck at the base line of the court, 13.3 m from the net. The ball is given an initialvelocity with a horizontal component equal to 22.0 m/s at an initial elevation of 1.45 m.
Suppose you have a lens system that is to be used primarily for 770 nm light. What is the second thinnest coating of fluorite that would be nonreflective for this wavelength
A bacterium using its flagellum as propulsion can move through liquids at a rate of 0.003 m/s. What amount of force must the flagellum generate to propel the bacterium at a constant velocity of 0.003 m/s
Yellow-green light of wavelength 550 nm in air is incident on the surface of a flat piece of crown glass at an angle of 60. What is the angle of refraction of the light
When a train's velocity is 12.0 {\rm{ m/s}} eastward, raindrops thatare falling vertically with respect to the earth make traces thatare inclined 30.0 ^\circ to the vertical on the windows ofthe train.
The world's strongest magnet that can produce a sustained field is a 45-T device at the National High Magnetic Field Laboratory in Florida. What's the corresponding magnetic-energy density
e end of an insulated metal rod is maintained at 100oC and the other end is maintained at 0.00oC by an ice-water mixture. Determine the thermal conductivity k of the metal
Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9300 N. Illustrate what does the scale read during the acceleration?
In a Young's double-slit experiment, a set of parallel slits with a separation of 0.100 millimeter is illuminated by light having a wavelength of 592 nanometer, Find what is the difference in path lengths from the two slits to the location of the f..
A space craft with a mass equal to .25*(mass of moon) is in orbit about the sun with a period of 3 years. calculate the average radius of the space craft's orbit. (the distance from the space craft to the sun).
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