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How much lift is exerted on the wings of an airplane that have atotal surface area of 102 m2 when the difference in air pressurebelow and above the wings is 4% of atmospheric pressure?
A merry-go-round accelerates from rest to 0.71 in 21. calculate the net torque required to accelerate it
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2. At the end of the firing period, the c..
In the Biomedical and Physical Sciences building at MSU there are 132 steps from the ground floor to the sixth floor. Each step is 16.6 cm tall. How many food Calories did the person burn during the walk
a penny is dropped from the observation deck of the Empire State building (369 m above ground). With what velocity does it strike the ground, how far would the ball fall in twice that time
Magnetic measurements have been made on some lavas found at 60*N, 90*W. what is the subsequent error in the calculated paleolatitude
A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the similar kinetic energy as the son.
A car weighing 8600 N moves along a level highway with a speed of 70 km/h. The power of the engine at this speed is 66 kW. what is the new speed of the car on the hill
Some object moves 100.0 m at an angle of 36° west of south. During this motion, a 92.0 N force acts on the same object, what is this force's orientation
A damped mass-spring system oscillates at 165 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 7.0 cm and the energy of the oscillating system is then 70 J.
A nuclear power plant draws 3.5 x 10^6L/min of cooling water from the ocean, what is the water speed in each pipe
When the pressure on saturated liquid water is suddenly reduced to a lower pressure in an adiabatic and aergonic process, the liquid's temperature must also be reduced to reach a new equilibrium state.
q1. a car moving at 37 ms approaches a stationary whistle that emits 270 hz sound. the speed of sound is 347 ms. what
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