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Suppose that a Ferrari and a Porsche begin a race with a moving start, and each moves with constant speed. One lap of the track is 2Km. The Ferrari laps that Porsche after the Porsche has completed 9 laps. If the speed of the Ferrari has been 10km/h less, the Porsche would have traveled 18 laps before being overtaken. What were the speeds of the two cars?
A rotating cylinder about 16 {rm km} long and 6.8 km in diameter is designed to be used as a space colony. With what angular speed should it rotate so that the residents on it will experience the same acceleration due to gravity as on Earth.
The earth makes a near circular orbit around the sun(r=1.5 * 10^11m) Assuming uniform circular motion Determine the earth's angular speed, linear speed and centripetal acceleration.
a 1050 kg sports ca is moving westbound at 15.0ms on a level road when is collides with 6320kg truck driving east on
A 55.0cm long brass rod has a diameter of 3.00cm. What compression force will break this rod? What tension force will break this rod
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
Find out the type of mirror and how far the object is
A solid concrete block weighs 250 N and is resting on the ground. Its dimensions are 0.400 m x 0.190 m x 0.0880 m. What is the smallest number of whole bricks
A cylinder contains 3.1 L of oxygen at 310 K and 2.5 atm . The gas is heated, causing a piston in the cylinder to move outward. What is the gas pressure
You are driving to the grocery store at22m/s. You are125m from an intersection when the traffic light turns red. How long does it take you to stop
A tuning fork vibrating at 666 Hz falls from rest and accelerates at 9.8 m/s 2. How far below point of release is the tuning fork when waves of frequency 626.4 Hz reach the release point? The speed of sound in air is 339 m/s.
Three forces in the x-y plane act on a 5.80 kg mass: 15.30 N directed at 59o, 12.20 N directed at 170o, Calculate the direction of the resultant force using the same sign convention as above
The electron gun in an old TV picture tube accelerates electrons between two parallel plates 1.2cm apart with a 28kV potential difference between them. What is the electric field strength between the plates
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