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Problem: If the work required to speed up a car from 14km/h to 21km/h is 8.0 × 103 J,
Part A: What would be the work required to increase the car's speed from 21km/h to 32km/h?
I need expert help to solve the above problem and express your answer using two significant figures.
a block of mass m1=8 rests on a frictionless surface and is attached to a light cord that is wrapped around a solid cylinder of mass m2, radius r=.130 m and moment of inertia I=1/2m2R^2.
Two identical sinusoidal traveling waves are moving in the same direction along a stretched string. The amplitude of the resultant wave is 1.80 times that of the common amplitude of the two combining waves. What is the phase difference between the..
A ray of light strikes a plane mirror perpendicular to the mirror. What is the angle of reflection
carries a 10 A current with a uniform current density. Use Ampere's Law to determine the magnetic field strength at the axis of the wire
A disk-shaped merry-go-round of radius 2.78mand mass 160kg rotates freely with an angular speed of 0.696rev/s. What is initial and final kinetic energy
A ball is held on an incline at the height of 72 cm. it is then released so that the ball rolls down the incline. At the bottom of the incline there is a loop where the ball rolls around in. If the loop is 62 cm high at its highest point what is the ..
A shell is fired at an angle of 20 degree above the horizontal at a velocity of 200 m/s a) what is the range. b) What is its velocity at highest point of the trajectory.
A runner of mass m = 37 kg and running at 2.8 m/s runs asshown and jumps on the rim of a playground merry-go-round which hasa moment of inertia of 383 kg·m2, what is its final angular velocity
A "railgun" accelerates a projectile using an electric current circulating through two parallel rails and the projectile itself. What is the impulse on the projectile
A toroidal solenoid with mean radius r and cross-sectional area A is wound uniformly with N1 turns. A second toroidal solenoid with N2 turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and m..
A thin film of polystyrene of refractive index 1.49 is used as anon reflecting coating for Fabulite (strontium titanate) of refractive index 2.409. Compute the minimum thickness of the film required
A 1.49 kg ball is connected by means of two ideal strings to a vertical, rotating rod. The strings are tied to the rod and are taut. What is the tension in the lower string
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