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A bank robbers travelling at 75 mi/hr in an escape car suddenly sees a barricade 150 meter ahead. The robber slams on the breaks following a 0.75 delay (the drivers reaction time) after the brakes are applied, the car decelerates at 4.2m/s2. Will the car hit the barricade, if so, determine what is its velocity?
In any collision, if we find thatmomentum is NOT conserved, it must mean that. A puck slides with initial velocity 2.0 m/s on a frictionless surface and collides (head-on)inelastically with an identical puckat rest. The pucks stick together after t..
You stand on a frictionless platform that is rotating at anangular speed of 1.2 rev/s. Your arms are outstretched, and you hold a heavyweight in each hand. What is the resulting angular speed of the platform
A microscope with an eyepiece lens of focal length 1.80 cm and an objective lens of focal length 0.95 cm is used to examine a section of the brain of a sacrificed rat. How far from the objective lens is the object
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.979 rad/s. You, with a mass of 70.3 kg, walk clockwise around the platform along its edge at the speed of 1.11 m/s with respect to the platform. Calculate the ..
Compute the net electric flux through the hull of the submarine. Is the number of electric field lines leaving the submarine greater than, equal to, or less than the number entering it?
a baseball player hits a triple and ends up on third base. a baseball diamond is a square each side of length 29 m with
Two space walkers, one with a mass of 77 kg and the other with a mass of 78 kg, hold on to the ends of a lightweight cable 14.5 m long. how far will the less massive astronaut move
A cowboy at a dude ranch fills a horse trough that is 1.50m long, 65cm wide and 45cm deep. He uses a 2cm diameter hose from which water emerges at 1.50m/s.
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
Medical technicians use small centrifuges to isolate blood cells. How far are the test tubes from the rotation axis
youre sailboarding at 7.0 when a wind gust hits lasting 6.8 accelerating your board at 0.43 at a 35 degrees to your
A light bulb is connected to a 240-V wall socket. The current in the bulb depends on the time t according to the relation I = (2.828 A) sin[(596.6 Hz)t].Determine the resistance of the bulb's filament
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