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A He-Ne laser beam with an intensity of 1.00 103 W/m2 is incident from air to dense flint, perpendicular to the surface of the dense flint. Find the intensity of the beam transmitted into the dense flint.
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.16 m. find With what velocity did the mug leave the counter
A square, single turn coil 0.20m on a side is placed with its plane perpendicular to a constant magnetic field. An emf of 18mV is induced in the coil winding as the area of the coil decreases at the rate of 0.10m2/S. What is the magnitude of the m..
A copper ion with a single electron (denoted Cu28+) is in an excited state with radius the same as that of the ground state of hydrogen. How much energy in eV is needed to ionize the ion from this excited state
If it takes 3 golf balls to equal the mass of one tennis ball, what weight of tennis balls do you require equalling the number of golf balls in one kilogram of golf balls.
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
A tetherball leans against the smooth, frictionless post to which it is attached. what is the force the pole exerts on the ball
For the spherical distribution: A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
A muon is produced by a collision between a cosmic ray and an oxygen nucleus in the upper atmosphere at an altitude of 50 km, What is the velocity of a muon at the surface
A 2 kg gun imparts a speed of 500 m/s to a 25 g bullet. what average force is exerted on the shooter's shoulder
A microscope has an objective that has a focal length equal to 6.6 mm. what is the laternal magnification of the objective
a 5 kg block moving at 4.0 m/s collides and sticks with a second stationary block of mass 3.0 kg, find the velocity of blocks after the collision
An object's moment of inertia is 1.8kgm2 . Its angular velocity is increasing at the rate of 3.3rad/s2, What is the torque on the object
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