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A straight 1.71 m long copper rod is moved perpendicularlyacross a uniform 0.90 T magnetic field. If a constant potentialdifference of 1.49 V appears across its end, how much time will ittake to traverse the 1.50 m long magnetic field region?
A 70-kg bicyclist coasts down a hill that makes a 10degree angle with the horizontal at a speed of 10 m/s. how fast can he go up the hill
A uniform flat rectangular sheet of mass m and side lengths a and b rotates with angular speed ? around a diagonal, What is the upper bound on the torque
a race car is traveling at a constant speed v 200 mph over a circular banked turn. let the weight of the car be w
a series rlc ac circuit has a capacitive reactance of 55 w and inductive reactance of 25 W and a resistance of 40 W. what is the impedance of this circuit
A laser light has a wavelength of 670 nanometers and the separation between the two first order diffraction minima is 11 cm. Calculate the slit width and slit separation
A 23-g bullet traveling 225 m/s penetrates a 3.2-kg block of wood and emerges cleanly at 185 m/s If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
Two identical spacecraft are to be accelerated by rockets. The first rocket fires with a force 4 times as large as that of the second rocket. The acceleration of the first rocket is how many times as vast as the acceleration of the second rocket.
the forces exerted on the shoes and back of the 72-kg climber bythe walls of the chimney are perpendicular to the walls exertingthem. what is the magnitudeof the force exerted on his back
An air mass has a temperature of 68F at 970hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing, the air mass now has a temperature of 50F and a pressure of 750hPa. Find the initial and final values of:
A person throws a discus (mass = 2 kg) at an angle of 40o to thehorizontal with a velocity of 20 m/s. Neglect air resistance for these questions. Calculate the distance the object travelled horizontally priorto ground contact if the discus was rel..
Consider two identical particles of spin 1/2 that are confined in a cubical box of side L. Find the energy and wave function of this system
the mass of a copper atom is 5.55 x 10-25 kg and the density of copper is 8 920 kgm3 .a determine the number of atoms
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