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To avoid hitting a pedestrian, a car driver slams on her brakes and comes to a complete stop after skidding 16 m. If the coefficient of kinetic friction between the car's tires and the road is 0.53, what was the speed of the car when the brakes were applied. (The car is old and does not have anti-lock brakes!) Give your answer to the nearest tenth of a m/s.
How many electrons are transferred. What is the smallest thickness of a soap film that would appear black if illuminated with 490 light? imagine there is air on both sides of the soap film.
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. If the bullet enters with a speed of 387 m/s and emerges with a speed of 163 m/s, what is its acceleration as it passes through the boar..
A toaster oven has a equivalent resistance of 10.5 ?. When pluged in a 120 V circuit, (Assume direct current) , What's the power of the oven
An electron is accelerated by a constant electric field of magnitude 325 N/C. Find the acceleration of the electron
what average power was developed. A curve of radius 70 m is banked for a design speed of 110 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve.
A flat conductor of thickness 0.500 mm is placed in a magnetic field of 0.200 T perpendicular to the flat surface. what is the Hall voltage generated when 3.40 A flows along the conductor
A toy cannon uses a spring to project a 5.24 g soft rubber ball. The spring is originally compressed by 4.96 cm and has a force steady of 8.03 N/m.
The spring balance is reasonably accurate for determining the load mass, Explain how to use the Workin = Workout principle to verify the mass of the spring balance
After 803 rev/min is achieved, the motor is disengaged. A friction brake is used to slow the rotational rate to 351 rev/min. Illustrate what is the magnitude of the energy dissipated as heat from the friction brake?
A chartered airplane flies 100 km east, then 350 km northwest, and then 150 km at 30° west of south. Find the magnitude of the last leg of the journey
A bird watcher meanders through the woods, walking 0.506 km due east, 0.736 km due south, Determine the magnitude (in kilometers) of the bird watcher's displacement
A train is moving parallel and adjacent to a highway with a constant speed of 33 m/s. What is the speed of the car just as it passes the train
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