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Two cars start racing from rest. The track is 400 meters lonf and linear. Car A accelerates at 3 meters per second and Car B accelerates at 3.1 meters per second. How far behind is Car A when Car B passes the finish line? What is Car A's speed when it crosses the finish line?
A hoop and a disk, both of 0.68- m radius and 4.0- kg mass, are released from the top of an inclined plane 2.6 m high and 7.7 m long. What is the speed of the disk
A defibrillator consists of a 15.3-µF capacitor that is charged to 8.4 kV. What is the average power delivered to the tissues
In addition, snow exerts a retarding force on the sled that points opposite to the direction of motion, and has a magnitude of 57 N. Find out the acceleration of the sled and child.
A space traveler weighs 130 pounds on earth. What would the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth.
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
As a summer intern for a microscope company, you are designing a compound microscope for a client that provides you with the following information. determine the barrel length needed for the microscope
A 50g ball of clay is thrown horizontally at 40m/s toward a 1.5kg block sitting at rest on a frictionless hi surface. The clayts and sticks to the block. What impulse does the clay exert on the block
What is the speed of the two carts at the moment while their speeds are equal?
A bat emits short pulses of sound at a frequency of 1.60×105 Hz. As the bat swoops toward a flat wall at speed 30.0 m/s, What is the frequency of sound incident on the wall
What is the force acting on the board because of the left support when a diver of mass 63.20 kg stands at the end of the board over the water? Suppose that these forces are vertical.
A train is travelling up a 3.2 degree incline at a speed of 3.55 m/s as the last car breaks free and begins to coast. How long does it take for the last car to come to rest.
The dialectric breakdown of air is approximately 3E6 V/m. This is the electric filed required to create a spark, What is the approximate voltage on the sphere at that instant
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