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Find the change in length of the bridge for an increase in temperature of 10 degree Celcius. Assume that for steel, (s = 11 x 10^-6 / degree Celcius).
A battery's ideal voltage is 12.0 V; its internal resistance is 1.46 ohms. what is the actual voltage supplied by the battery
A 2 kg ball moving towards the West with a speed of 10m/s collides with a 4 kg ball moving towards the North with a speed of 3m/s. Find the velocity of the combination after collision
The electric field in a region of space is oriented along the positive y axis. A circle of radius R is placed in xz-plane. The flux of the electric field by this circle is Φ. The same electric field passing through a second circle of radius 2R parall..
An airplane can be made invisible to radar by coating the plane with a thin layer of an antireflective material. How many dark fringes are observed when 600 nm light illuminates the slides from directly above
A 30 charge is moved from a point where = 150 to a point where = -70. How much work is done by the force that moves the charge
A bat at rest sends out ultrasonic sound waves at 53.5kHz and receives them returned from an object moving directly away from it, What is the received sound frequency
The hole on a level, elevated golf green is a horizontal distance of 125 m from the tee and at an elevation of released 10.4 m above the tee, What was the initial speed of the ball
A light spring-gun projectile launcher is mounted on an .443 kg air track glider. find the speed of the air-track glider after the gun is fired
What is an acceleration of two falling sky divers (mass 120.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight.
A pipe carrying 20°C water has a diameter of 2.4 cm. Estimate the maximum flow speed if the flow must be streamline
The spin cycles of a washing machine have two angular speeds, 431rev/min and 622rev/min . The internal diameter of the drum is 0.440m. Find the laundry's maximum tangential speed
A child sits on the edge of a spinning merry-go-round that has a radius of 2.2 m. The child's speed is 4 m/s. What is the child's acceleration
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