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An amusement park roller coaster starts out on a level track 50m long and then goes down a 50m incline at an angle of 30 degrees to the vertical(y-axis). It then goes up a 20m ramp with incline of 20degrees to the horizontal(x_axis), it then prceeds on a 15m horizontal track and enters, from the bottom, the inside of a circular track and after subtending 25degrees it noticed it is halfway up to its original height.What is the radius of the circular track? If the initial speed is 5m/s how long does it take to reach the bottom of the circular track(end of 15m horizontal track).
in a long solenoid the density of the wire is 180 turnscm. if the current in the wire is 0.680a what is the strength of
An axial tensile force of 5kN is applied at each of the extreme ends. Determine the total elongation of the assembly. For steel, E = 200GPa, and for brass, E = 90GPa. Express the answer in millimeters.
an object undergoes projectile motion where friction is negligible and the acceleration due to gravity g is constant.
a small pumpkin is launched from a very versatile catapult at a variety of speeds and angles. rank each of the
A plank 2.00 cm thick and 16.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below, find the shear modulus of the wood
A person notices a mild shock if the current along a path through the thumb and index finger exceeds 72µA. Compare the maximum possible voltage without shock acrossthe thumb and index finger with a dry-skin resistance of3.0 multiplied by 105 and a we..
A satellite is put in a circular orbit about Earth with a radius equal to 50% of the radius of the Moon's orbit. What is its period of revolution in lunar months
A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.23 m. The normal to the plane of the loop is parallel to a constant magnetic field ( = 0°) of magnitude 0.73 T. What is the change ?..
A uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0° above the horizontal. find the magnitude of the frictional force exerted on the ladder
A wire is formed into a circle having a diameter of 10.9 cm and is placed in a uniform magnetic field of 3.17 mT. Find the maximum torque on the wire
A spring-loaded cannon aimed at 40 degrees above the horizontal is on the last car of a long train of flat cars. What is the horizontal range observed by a person standing on the ground
A car moving 65 mph suddenly breaks andstops after traveling for 50 m. Find The time it takes for the car to stop
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