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Question1
A square plate of side a and mass m is thrown into the air so that it rotates freely under zero torque. The rotational period is 1 sec. If the axis of rotation makes an angle of 45 with the symmetry axis of the plate, find out the precession period of the axis of rotation about symmetry axis. Also discover the angle between w and l
Question2
The pilot of an aircraft wishes to fly due west in a 50.0 km/h wind blowing toward the south.
The speed of the aircraft in the absence of a wind is 205 km/h.
In what direction must the aircraft head?
What have to its speed relative to the ground been?
Question3
For a damped oscillator with a mass of 280 g, a spring constant 97 N/m and a damping coefficient of 68 g/s, what is the ratio of an amplitude of the damped oscillations to an initial amplitude at the end of 26 cycles?
Three charges sit at the corners of an equilateral triangle with sides of length d = 3cm. Calculate the electric potential at the centre of the triangle
A wire of radius a is surrounded by a cylindrical conductor of inner radius a and outer radius 2a,. find the radius at which the magnetic field is zero
In a head on collision, a car stops in .10 seconds from a speed of 14 meters per second. The driver has a mass of 70 kg, and is, fortunately, tightly strapped into his seat. What force is applied to driver by his seat belt during that fraction of ..
a spring has a length of .248m when a .300kg mass hangs from it, and a length of .750m when a 2.22kg mass hangs from it. what is the unloaded length of the spring
What is the total work done on the block by the applied force as the block moves a distance 10-m up the incline.
Suppose the tension in a cord is 12.0 N. If the speed of a wave in the cord is 9.50 m/s, then what must be the linear mass density of the cord
A 50 kg woman stands on the back of a 6 m long, 125 kg raft that is floating at rest in still water with no friction. The raft is 0.50 m from a fixed pier.
Suppose the speeder is traveling with a constant speed of 25m/s , and that the maximum acceleration of the police car is 3.1m/s2. find the maximum head-start distance the speeder can have
In a physics lab experiment, a student immersed 201 one cent coins (each having a mass of 3.00) in boiling water. After they reached thermal equilibrium, she quickly fished them out and dropped them into 0.240 of water at 20 in an insulated contai..
The combined mass of the professor and the chair is 90-kg. He is pushed 2.60-m along the incline by a group of students who together exert a constant horizontal force of 600-N. The professor speed at the bottom of the ramp is 1.75m/s. use the work..
A Carnot engine absorbs 950J of heat each cycle and provides 340J of work. How much heat is rejected each cycle
After a hard rain, you walk out into the parking lot and notice an oil sheen on top of a puddle of water. when viewed from directly above, What wavelength of light is transmitted into the water
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