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Q. A car moving 10 m/s crashes into a barrier and stops in .25 meters.a. find the time to stop the carb. if a 20 kg child were to be stopped in the same time as the car, wha average force must be exerted.c. approximately what is the mass of an object whose weight equals the force from part "b"? could you lift such a mass?
A sealed tank containing seawater to a height of 11.1 also contains air above the water at a gauge pressure of 2.95. Water flows out from the bottom through a small hole.
What was the average acceleration throughout the trip
A toy train rolls around a horizontal 1.30 diameter track. The coefficient of rolling friction is 0.10.
A force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A train is travelling up a 5 degree incline at a speed of 2.2 m/s while the last car breaks free and begins to coast without friction. a) How long does it take for the last car to come to rest momentarily? b) How far did last car travel before mom..
A plane leaves the airport in Galisto and flies 170 km 68 degrees east of north and after that changes direction to fly 230 km at 48 degrees south of east, after that it makes an immediate emergency landing in a pasture. When airport sends out a r..
Standing at a crosswalk, you hear a frequency of 520 Hz from the siren of an approaching police car. After the police car passes, observed frequency of the siren is 455 Hz. Establish the car's speeds from these observations.
A dog running in an open field has components of velocity = 3.4 and = -1.9 at time = 10.4. For the time interval from = 10.9 to = 24.7, the average acceleration of the dog has magnitude 0.45 and direction 25.
On December 3 at 11 pm you look toward the eastern horizon and see the bright star Procyon rising. At approximately what time would Procyon rise one week later, on December 9.
What is the moment of inertia of flywheel
What is your displacement after running 2 {rm km} on Strawberry Fields, 1.6 {rm km} on Penny Lane, and 4.8 {rm km} on Abbey Road.
What is t he steam-side coefficient
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