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Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed, you will experience a constant acceleration. Suppose you drive through an entrance ramp at a modest speed and your acceleration is 2.0. What will be the acceleration if you double your speed?
A charge of 20 nC is uniformly distributed along a straight rod of length 4.0 m that is bent into a circular arc with a radius of 2.0 m
You can think of the work?kinetic energy theorem as a second theory of motion, parallel to Newton's laws in describing how outside influences affect the motion of an object. Use the work-kinetic energy theorem to find the net work that is done on t..
A sign has a mass of 1050 kg, a height h = 1 m, and a width W = 4 m. It is held by a light rod of length 5 m that is perpendicular to a rough wall. What is the smallest value of the coefficient of friction
Three point charges, -4.9 x 10-9 C, -9.7 x 10-9 C, and +7.1 x 10-9 C, are fixed at different positions on a circle. What is the radius of the circle
A ball and bat, approaching one another each with the same speed of 1.1 m/s collide. Find the speed of the ball after the collision. find the factor by which the kinetic energy of the ball increases
Inside an insulated container, a 250-g ice cube at 0 °C is added to 200 g of water at 18 °C. What is the remaining ice mass
q1. a coin is placed 12.0 rm cm from the axis of a rotating turntable of variable speed. when the speed of the
A mass of 21.21 kg is attached to a light string t is wrapped around a cylindrical spool of radius 10 cm and moment of inertia 4 kgm2. How long does it take to reach floor
A solid sphere of mass 0.595 kg rolls without slipping along a horizontal surface with a translational speed of 5.49 m/s. to what vertical height above the horizontal surface does the sphere rise on the incline
A train horn is heard at a 50 dB level by an observer 10 km away. What is the average power generated by the horn
question1a 575g air-track glider attached to a spring with spring constant 14.0 nm is sitting at rest on a frictionless
A bungee cord is stretched between two poles with a force of 415 N. What is the velocity of a wave on this bungee cord
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