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Refraction is caused by the fact that
the angle of incidence is greater than the critical angle.a given medium has different speeds of light for differentwavelengths.a given medium has different indices of refraction fordifferent angles of incidence.different media have different speeds of light.
An alpha particle (?) has a rest mass m = 6.64x10-27 kg. What is the kinetic energy K of the alpha particle at this speed
Three particles, each with a mass of 0.25 kg, are located at ( -4.0 m, 0), (2.0 m, 0), and (0, 3.0 m) and are acted on by forcesF1 = (-3.0 N)y, F2 = (5.0 N)y andF3 = (4.0 N)x, and respectively. Find the acceleration(magnitude and direction) of the..
Two positive point charges are a fixed distance apart. the sume of their charges is Qt. what charge must each have in order to a) mazimize the electric force between them, and b) minimize it?
A swimming pool is 50 m long by 23 m wide and is less deep at one end than at the other. The depth at the shallow end is 1.18 m, and the depth at the deep end is 3.95 m. The slope is continuous (smooth) from one end to the other. What is the differen..
compressive strength of our bones is important in everyday life. youngs modulus for bone is about 1.41010 pa. bone can
A 130- baseball, moving along the axis with speed 35 , strikes a fence at a 45 angle and rebounds along axis with unchanged speed Give the - and - components of its change in momentum.
A series circuit with a resistor and a capacitor has a time constant of 0.41 ms. The circuit has an impedance of 419 O at a frequency of 1250 Hz. What the capacitance and the resistance
A car drives north at 46 for 10 and then turns east and goes 5 at 60. At last, it goes southwest at 30 for 6.0. What is the average velocity.
A torque of 24.0 N m is applied to a solid disk, accelerating itfrom rest to an angular velocity of 140.0 rpm. (The disk has a massof 2.00 kg and a radius of 0.200 m.) What is the final rotational kinetic energy of the disk?
What will be its length and height at rest
A parallel-plate capacitor has plates of area 0.16 m2separated by a distance of 0.004 m. What is the strength of the electric field between these plates when this capacitor isconnected to a 4-V battery?
define How fast is the osprey approaching. Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion.
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