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A roller-coaster car has a mass of 500 kilogram when fully loaded with passengers. The car passes over a hill of radius 15 m, as shown. At the top of the hill, the car has a speed of 8.0 m/s. Determine is the force of the track on the car at the top of the hill?
A tube with a 5.0 mm radius has ions flowing through it. To determine the rate at which the charge is being moved through the tube, find the magnitude of the current flowing through the tube
A camera is equipped with a lens with a focal length of 23 cm. how far from the film should the lens be placed
Two point charges, q1= 2.40 nC and q2= -6.50 nC, are 0.100 m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2 (see the attachment). Take the electric potential to be zero at infinity.
A 615-kg racing car completes one lap in 14.3 sec. arounda circular track with a radius of 50.0 m. What force must the track exert onthe tires to produce this acceleration
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin , What is the charge of the central particle
A fisherman weighing 60 kg in a boat of mass 30 kg at rest throws a 5 kg jug of water toward the east. what is the speed of the boat
A large tank is divided into two parts by a partition. The first part contains 5 kg of refrigrtant-134a at 80oC, 900 kPa. The other part contains 3 kg of refrigerant-134a at -2oC with a vapor mass fraction of 46 percent.
An electron is moving through a magnetic field whose magnitude is 83 x 10-5 T. The electron experiences only a magnetic force and has an acceleration of magnitude 34 x 10+13 m/s2. At a certain instant, it has a speed of 72 x 10+5 m/s. Determine the a..
Find out the tension in the rope
A jet plane lands with a velocity of +103 m/s and can accelerate at a maximum rate of -5.00 m/s2 as it comes to rest. find the minimum time needed before it can come to rest
A system consists of 4.0 kg of water at 85 degrees Celsius 35 J of work is done on the system by stirring with a paddle wheel, What is the change in internal energy of the system
A 24.7cm screwdriver is used to pry open a can of paint. if the axis of rotation is 2.39cm from the end of the scredriver blade and a force of 17.2N is exerted at the end of the screwdriver's handle, what force is applied to the lid? answer in units ..
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