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A golfer hits a shot to a green that is elevated 3.0 m above thepoint where the ball is struck. The ball leaves the club at a speedof 18.9 m/s at an angle of 33.0° above the horizontal. It risesto its maximum height and then falls down to the green. Ignoringair resistance, find the speed of the ball just before itlands.
A proton is located at the origin, and a second proton is locatedon the x-axis at x = 5.12 fm (1 fm = 10-15 m). Use conservation of energy to calculate the speed of the alphaparticle at infinity.
Object A is metallic and electrically neutral. It is charged by induction so that it acquires a charge of -2.86E-6 C. Object B is identical to object A and is also electrically neutral.
Consider the chemical reaction given. The initial concentrations of CO(g) and H2O(g) 0.35 M and 0.40 M respectively, What is the value of the equilibrium constant for this reaction
submarine on the ocean surface receives a sonar echo indicating an underwater object. The echo comes back at an angle of 20 degree above the horizontal and the echo took 3.04s to get back to the submarine What is the object's depth?
The toadfish makes use of resonance in a closed tube to produce very loud sounds. Calculate the intensity of the sound wave emitted
A copper wire and an aluminum wire of the same length have the same resistance. What is the ratio of the diameter of the copper wire to that of the aluminum wire
Ultrasound with a frequency of 4.288 MHz can be used to produce images of the human body. what is the wavelength in the body
A quantity of liquid water comes into equilibrium with the air in a closed container, without completely evaporating, at a temperature of 25.0 °C. How many grams of water vapor does 9 liters of the air contain in this situation? The vapor pressure..
Common sports injuries result in the tearing of tendons and ligaments due to over stretching. how far must it be stretched from its relaxed length to tear it
What is the (a) “current” due to the electron orbiting in a circular path about the proton in a hydrogen atom? Take the orbital radius to be r = 0.0529 nm.] (b) What magnetic field strength does this “electron current” create at the proton locatio..
Two speakers face each other and radiate coherently and in phase. The speakers are separated by a distance of 5.50 m, What is the wavelength of the sound
A fireman d = 59.0 m away from a burning building directs a stream of water from a ground- level fire hose at an angle of ?i = 29.0° above the horizontal, at what speed will the water strike the building
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