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A 17750 kg airplane lands with a speed of 84 m/s on a stationary aircraft carrier deck that is 115 m long. Find the work done by nonconservative forces in stopping the plane.
Write equations for the position along the slope and for the velocity as functions of time, taking x = 0 at the bottom of the hill, where vi = 30.0 m/s.
It moves with constant acceleration of car 1 = 1.5 . At t= 3.0 , a second car is launched with constant acceleration of car 2 = 7.4 . When will the second car catch up with the first?
Air is flowing through a rocket nozzle. Inside the rocket theair has a density of 5.25kg/m^3 and a speed of 1.2 m/s. Theinterior diameter of the rocket is 15.0 cm. At the nozzle exit, thediameter i
A baseball player slides into home plate. During the slide, the ground exerts a frictional force on the player that decreases her speed. If this frictional force is the action force, what is the re
The direction of 26.0 north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C?
A crate of 33.7- tools rests on a horizontal floor. You exert a gradually increasing horizontal push on it and observe that the crate just begins to move when your force exceeds 336 . After that yo
Two identical cars of mass 2010 kg each drive toward one another, both traveling at 24.0 m/s. They collide head-on and smash together; what is the final speed of the wreckage?
The bullet hits the target 1.3 cm below the aiming point. Neglect air resistance.(a) What is the bullet's time of flight?(b) What is its muzzle velocity?
A double-slit experiment is set up using helium-neon laser (λ = 633 nm). Then a very thin film of glass (n = 1.50) is placed over one of the slits. Afterward, the central point on the screen
A toy train rolls around a horizontal 1.2--diameter track. The coefficient of rolling friction is 0.15. What is the magnitude of the train's angular acceleration after it is released? (found) How lo
The target is 2000 m from the cannon horizontally and 800 m above the cannon. At what angle (in degrees and three significant figures), above the horizontal, should the cannon be fired?
Estimate the temperature of CMB when Helium recombination occured. Assume that all the CMB photons have the average energy of the black body spectrum.
A crate of mass m = 20 kg rides on the bed of a truck attached by a cord to the back of the cab as in the figure. The cord can withstand a maximum tension of 56 N before breaking. Neglecting fricti
Spiderman, whose mass is 80.0 kg, is dangling on the free end of a 8.7-m-long webline, the other end of which is fixed to a flagpole above. By repeatedly bending at the waist, he is able to get him
A steel wire in a piano has a length of 0.683 m and a mass of 4.24 grams. To what tension must this wire be stretched so that the fundamental vibration corresponds to the musical note middle C? The
Can this plane land on a small tropical island airport where the runway is .8000 km long? What is the minimum distance needed to stop the plane?
A baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 36.87° above horizontal a) what is the speed of the base
The reactance of a capacitor is 6.4 kΩ at a frequency of 1.8 kHz. What is the capacitance in nano-farads?
How far does the cab move while accelerating to full speed from rest? (b) How long does it take to make the nonstop 210 m run, starting and ending at rest?
A batter swings a 0.9 m long bat with a mass of 0.6 kg. Calculate the torque the batter applies to the bat if the bat has an angular acceleration of 5 rad / s2.
An observer on the ground sees the plane pass overhead at a velocity of 128 km/h toward the north. What is the velocity of the wind that is affecting the plane? Let north be positive.
If a 3rd charge Q = -10 uC is placed at point P, determine the force on Q. Magnitude and Direction
Consider two blocks A and B of mass 250.0 and 50.0 kg, respectively, connected by a very light string. The pulley is frictionless and of negligible mass. The co-efficient of kinetic friction between
A car traveling at a speed of vo = 52.0 m/s stops smoothly (that is, its deceleration is constant) over a distance of d = 147.0 m. What is its acceleration during the time it is stopping?