Physics, 14.10.2019 22:30 tilievaughn14
1. how much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km? show work for credit and include final units
Answers: 2
Physics, 21.06.2019 22:50, Jasten
A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!
Answers: 1
Physics, 22.06.2019 05:10, delawdermia27
Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?
Answers: 2
Physics, 22.06.2019 06:50, saltytaetae
What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl, max are applied?
Answers: 1
Physics, 22.06.2019 07:20, hardwick744
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
1. how much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km? show work fo...
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