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A 45 kilogram skater rounds a 5.0 meter radius turn at 6.3m/s.
(a) Find the horizontal and vertical forces ice exerts on blades?
(b) Find at what angle can she lean without falling over?
Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 370 to 260 K. What is the work done by (or done to) the gas? Include the algebraic sign.
A 100-turn square wire coil of area 0.04m2 rotates about a vertical axis at 1500 rev/min, as indicated. The horizontal component of the Earth's magnetic field at the location of the loop is 2.0 × 10-5 T. compute the maximum emf induced in the coil..
Four particles with masses 8 kg, 4 kg, 2kg, and 2kg are connected by rigid rods of negligible mass as shown. calculate the moment of inertia of the system about the z axis
Neutron stars consist only of neutrons and have unbelievably high densities. Find the density of such a star
If the only forces acting on a 2.0-kg mass are N and N, what is the magnitude of the acceleration of the particle
A football game begins with a kickoff in which the ball travels a horizontal distance of 45 yd and lands on the ground. what is the initial speed of the ball in this case
A 30 kg launching machine fires a 250 gram projectile horizontally at 100 m/s. What was the momentum of the machine
A 0.655kg stone is moving in a vertical circular path attached to a string that is 68.0cm long. The stone is moving around the path at a constant frequency of 2.35 rev/sec. Find the tension in the string at the lowest point, and the highest point.
Nitrogen at 5 X 10^5 Pa and 80 degrees C is on one side of a partition, occupying 1/3 of the volume of a 1.2 m^3 container. find the final pressure and temprature
A rotating circular solid metal ring sculpture mounted vertically on a swivel and rotates is located in Hawaii where the magnetic field is constant, what is the average power dissipated in the ring during this 4.0 second time period
A 100 kg quaterback is traveling 5 m/s and is stopped by atackler in 1 second, find the initial momentum ofthe quater back
The magnetic field inside a superconducting solenoid is 4.30 T. The solenoid has an inner diameter of 6.20cm and a length of 26.0 cm. evaluate the magnetic energy density in the field
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