For the following questions, begin with the work-energy equation, cancel terms, substitute and solve.1. A glider is gliding through the air at a height of 416 meters with a speed of 45.2 m/s. The gliderdivesto a height of 278 meters. Determine the glider's new speed. KEi + PEi + Wext = KEf + PEf2. A box with mass m is sliding along on a friction free surface at 9.87 m/s at a height of 1.81 m. Ittravels down the hill and then up another hill. a. Findthe speed at the bottom of the hill. KEi + PEi + Wext = KEf + PEf

To travel at constant speed, a car engine provides 24kw of useful power. the driving force on the car is 600n. at what speed does it travel?

Two horizontal plates with infinite length and width are separated by a distance h in the z direction. the bottom plate is moving at a velocity u. the incompressible fluid trapped between the plates is moving in the positive x-direction with the bottom plate. align gravity with positive z. assume that the flow is fully-developed and laminar. if the systems operates at steady state and the pressure gradient in x-direction can be ignored, do the following: 1. sketch your system 2. identify the coordinate system to be used. 3. show your coordinates and origin point on the sketch. list all your assumptions. 5. apply the continuity equation to your system. nts of navier stokes equations of choice to your system 7. solve the resulting differential equation to obtain the velocity profile within the system make sure to list your boundary conditions. check units of velocity 8. describe the velocity profile you obtain using engineering terminology. sketch that on the same sketch you provided in (1). 9. obtain the equation that describes the volumetric flow rate in the system. check the units.

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd question 6 options: 3000 joules 30 joules 320 joules 3200 joules