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An engineer must design a curved exit ramp for a highway in such a way that a car, exiting at the posted speed limit of 11.18 m/s (25mi/hr), does not depend on friction to round the curve without skidding. The radius of the curve is 214.0 meter. Find at what angle with respect to the horizontal must the curve be banked (in degrees)?
A device used in radiation therapy for cancer contains 6.20×10-1 g of cobalt 2760Co (59.9333819 u). Determine the activity of the radioactive material
A hydraulic lift has pipes of area A1=1 cm^2, A2= 40 cm^2. If I wish to lift a weight of 2000 N at the larger end, what force must i exert at the smaller end
Three resistors, 21, 39, and 73 , are connected in series, determine the potential difference across the three resistors
q1. a 1040 kg car carrying four 80 kg people travels over a rough washboard dirt road with corrugations 2.0 m apart
The ball curves because it is spinning at an average angular velocity of 370 rev/min (assumed constant) on its way to the catcher's mitt. Illustrate what is the angular displacement of the baseball (in radians) as it travels from the pitcher to t..
A 1.65 block is attached to a spring with spring constant 17. While the block is sitting at rest, a student hits it with the hammer and almost instantaneously gives it a speed of 59.
A circular saw blade 0.250m in diameter starts from rest. In 7.50s , it reaches an angular velocity of 140rad/s with constant angular acceleration. Find the angular acceleration and the angle
Objects A and B are both positively charged. Both have a mass of 200g, How large is the force on A and What is the charge qA and qB
The coefficient of static friction between the ladder and the ground is 0.55, and the ladder makes a 50.0° angle with the ground. Explain how far up the ladder can an 760 N person climb before the ladder begins to slip?
A small metal sphere of mass 6.9 g and charge 5.9 μC is firedwith an initial speed of 4.9 m/s directly toward the center of asecond metal sphere carrying charge 7.2 μC. This second sphereis held fixed.
In a court hearing, a physicist reconstructs an accident in the following way. A sports car of mass m1=1000kg collided with a parked truck of mass m2=1500kg. Determine the speed of the sports car immediately after the collision
Concept to find certain type of electronic devices & circuits.
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