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You send a beam of light from a material with index of refraction 1.21 into an unkown material. In order to help identify this material, you determine its index of refraction by measuring the angles of incidence and refraction for which you find the values 42.1° and 36.5°, respectively. What is the index of refraction of the unknown material?
A tennis player receives a shot with the ball ( 0.0600kg) traveling horizontally at 50.0 m/s, what is the impulse delivered to the ball by the racket
A bird stands on a dc electric transmission line carrying 2800 A. find the potential difference between the bird's feet
An electron confined in a one-dimensional box emits a 400nm photon in a quantum jump from n=1 to n=2. What is the length (L) of the box in nm
Calculate the centripetal force exerted on the Earth by the Sun. Assume that the period of revolution for the Earth is 365.25 days, the average distance is (1.5 x 10^24)kg
The Specific heat capacity at constant pressure of a gas varies with the temperature according to the expression: C_p = ( a + bT - c/T^(2) )
An object of mass 0.77 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a speed of 16.2 m/s. Find the magnitude of the average force acting on the ball
A very long solenoid with a circular cross section and radius r= 7.10 cm with n= 1.50E+4 turns/m has a magnetic energy density uB= 5.10 mJ/m3. What is the total energy stored in the solenoid
The most common isotope of a single nucleus (stripped of its electrons) is accelerated from rest through a potential difference of 1200V, What element is the unknown nucleus on periodic table
A man wishes to vacuum his car with a canister vacuum cleaner marked 550 W at 120 V. If the resistance of each of the two conductors of the extension cord is 0.900 Ohm's, what is the actual power delivered to the cleaner
A 1,576-kg car is moving down a road with a slope (grade) of 11% while slowing down at a rate of 3.6 m/s^2. find direction and magnitude of the frictional force
Compute the impedance of a series R-L-C circuit at angular frequencies of ?1= 1000rad/s , ?2= 715rad/s and ?3= 545rad/s, What is the phase angle of the source voltage with respect to the current
A 3 kg block moves down a hill that makes a 40° angle with the horizontal direction, what is the magnitude of the acceleration of the block
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