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During a NASCAR race a car goes 50 m/s around a curved section of the track that has a radius of 250 M. What is the car's acceleration?No words limits.
You are given 65.000 cm of copper wire with diameter 7.0000 mm. At what rate is thermal energy generated in the loop
q1. in a head-on collision a car stops in 0.28 from a speed of 18. the driver has a mass of 73 and is fortunately
Determine the image distance for an object do=7.900 cm from a diverging lens of radius of curvature 6.320 cm and index of refraction 1.800.
A laser emits a narrow beam of light. The radius of the beam is 9.6 mm, and the power is 1.9 mW. What is the intensity of the laser beam
An eagle is flying horizontally at 5.7 m/s with a fish in its claws. It accidentally drops the fish. (a) How much time passes before the fish's speed doubles? (b) How much additional time would be required for the speed to double again?
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
A steel bridge is built in the summer when its temperature is 35.5oC. What is the length of the bridge on a cold winter day when its temperature is -11.5 oC
find the period of this oscillation.
two point charges are located on the y axis as follows: charge q1 = -1.50nC at y1 = -0.550m , and charge q2 = 4.10nC at the origin, What is the magnitude of the net force
Two lenses that are 35 cm apart are used to form an image. Lens 1 is diverging and has a focal length of f1= -7.0 cm; Use a ray diagram to find the approximate location of the final image
A laser beam of unknown wavelength passes through a diffraction grating having 5590lines/cm , At what angle will the next pair of bright spots occur
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 76.0 rev/min in 3.50 s.
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