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Starting from rest in the pit area, a race car accelerates at a uniform rate to a speed of 45m/s in 15second, moving on a circular track of radius 500 meter.
a) Estimate the tangential acceleration?
b) Estimate the radial acceleration when the instantaneous speed is equal to 30 m/s?
c) Find the total acceleration when the instantaneous speed is 30 m/s?
A uniform bar is 5.00 m long and weighs 975 N. A weight of 255 N is attached to one end while a weight of 375 N is attached 1.50 m from the other end. Find the tension in the cable
a spacecraft is in orbit around a planet. the radius of the orbit is 2.9 times the radius of the planet which is r
Concept Simulation 26.4 provides the option of exploring the raydiagram that applies to this problem. The distance between anobject and its image formed by a diverging lens is 8.00 cm. Thefocal length of the lens is -3.60 cm. Find (a) the image dista..
The Space Shuttle travels at a speed of about 7.50 103 m/s. The blink of an astronaut's eye lasts about 100 ms. How many football fields (length = 91.4 m) does the Shuttle cover
A pitcher throws horizontally a fast ball at 146 km/h toward home plate, which is 18 m away. find how far the ball drops because of gravity by the time it reaches home plate
A 4.00 kg block is free from rest 2.0m high at the top of a 30 degree frictionless incline. The block makes a head-on elastic collision with another 3.00 kg block initially at rest on a horizontal surface at the bottom of the incline.
A can of paint (volume = 3.74 10-3 m3) covers an area of 40.0 m2. What is the thickness of the paint on the wall
What makes up the Total Energy of a System? Mathematically what similarities do Gravitational Potential Energy and Elastic Potential Energy have with each other?
A large solar panel on a spacecraft in Earth orbit produces 2.2{\rm kW} of power when the panel is turned toward the sun. What power would the solar cell produce
The clapper is a small, 1.8 kg mass attached to one end of a slender rod that has length L and negligible mass. The other end of the rod is attached to the inside of the bell
You stick two blocks together with Velcro. The manufacturer rated the Velcro as needing a force of 50N to separate the side you are using when applied to solid surfaces. Find the maximum possible amplitude of oscillation at which the blocks will ho..
A rock weighing 400 N sits on the edge of a 60 m cliff. How much potential energy does it have
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