Estimate the speed that the boulder will roll off the cliff

Reference no: EM13677919

A spherical boulder with a volume of 1800 m³ and a density of 2.7 x 10 3 kg / m³ starts to roll down a 30 degree incline that is 130 m long. At the end of the incline is a 450 m cliff. How far in the horizontal will the boulder have traveled upon landing? (Hint: First estimate the speed that the boulder will roll off the cliff. Total center of mass plus rotational kinetic energy of a rolling spherical object is 7/10 mv².)

Reference no: EM13677919

Questions Cloud

Two flat mirrors meet at angle theta : Two flat mirrors meet at angle theta. An incoming ray reflects off of both mirrors before emerging from the mirror-pair. Show that the angle among the incoming ray and the exiting ray is phi = 180° – 2theta.

What is the total change in internal energy of the helium : Two moles of helium are initially at a temperature of 24.0C and occupy a volume of 2.70×102m3 . The helium first expands at constant pressure until its volume has doubled. Then it expands adiabatically until the temperature returns to its initial val..

Discover the net work done on gas : An ideal gas with =1.4 occupies 5.5L at 300 K and 120kPa pressure and is compressed adiabatically until its volume is 2.0 L. It's then cooled at constant pressure until it reaches 300 K, then allowed to expand is thermally back to state A. Discover t..

What is the final volume of the helium : Two moles of helium are initially at a temperature of 30.0C and occupy a volume of 3.20×102m3 . The helium first expands at constant pressure until its volume has doubled. Then it expands adiabatically until the temperature returns to its initial val..

Estimate the speed that the boulder will roll off the cliff : A spherical boulder with a volume of 1800 m3 and a density of 2.7 x 10 3 kg / m3 starts to roll down a 30 degree incline that is 130 m long. At the end of the incline is a 450 m cliff. How far in the horizontal will the boulder have traveled upon la..

What is the longest wavelength that can be observed : What is the longest wavelength that can be observed in the third order for a transmission grating having 9500slits/cm? Suppose normal incidence.

Angular resolution of the camera at maximum aperture : A camera utilized for aerial surveillance has a lens with a 30-cm maximum aperture and a 42-cm focal length. Suppose light of 550-nm wavelength is utilized and that the resolution of the camera is limited solely by diffraction. What is the angular re..

What rate does it emit radiation : After some time elapses, the alligator's body temperature reaches a constant level. The rate of absorption is still 230 W. If the alligator loses heat with conduction and convection at a rate of 90 W, at what rate does it emit radiation?

How much heat is needed to melt the gold : Some gold medals are to be made from 750 g of solid gold at 24°C (Fig. 14.6). How much heat is needed to melt the gold so that it can be poured into the melds for the medals?

User Account

All Pages