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If a man can jump a maximum horizontal distance (by using a 45 degree projection angle) of 2.0 meter on the Earth, determine what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2?
m
Repeat for Mars, determine where the acceleration due to gravity is 0.38 g.
a hoop of mass M=2 kg and radius R=0.4 m rolls without slipping down a hill. what is the speed Vfinal at the bottom of the hill
A rifle with the barrel length of 62cm fires a 12g bullet with a horizontal speed of 380m/s. The bullet strikes a block of wood and penetrates to a depth of 14cm. What resistive force (assumed to be constant) does the wood exert on the bullet? How lo..
A projectile is fired in such a way that its horizontal range is equal to 2 times its maximum height. What is the angle of projection
A function generator generates a periodic ”square wave” signal. One period of such
At a factory, a noon whistle is sounding with a frequency of 497 Hz. As a car traveling at 84km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the change i..
Four wires meet at a junction. In two of the wires currents I1 = 1.03 A and I2 = 2.05 A enter the junction. In one of the wires current I3 = 6.17 A leaves the junction. Find the current in the fourth wire and indicate its direction.
Consider the mass on aspring system in Figure P11.20. Three identical springs, What is the frequency of this simple harmonic oscillator
A pump is needed to lift 750 L of water per minute a distance of 25.0 M. What power (in KW) must the pump be able to deliver? (1L of water has a mass of 1 kg.)
what is its potential energy relative to the bottom of the shaft? how fast will the payload be traveling when it reaches the bottom of the shaft? convert your answer to mph for a comparison to highway speeds.
At one end of a ripple tank 90 cm across, a 6 Hz vibratorproduces waves whose wavelength is 50 mm. Find the time the waves need to cross the tank
A shell is shot with an initial velocity of 27 m/s, at an angle of θ0 = 60° with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, f..
Electromagnets that produce large magentic fields use water cooling to prevent excessive heating of the magnet's coils. How many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 49°C
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