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As we discussed in class, most of the refraction in your eye happens at the surface of your cornea (n = 1.376). Use this idea to explain why wearing a swimming mask or goggles helps us to see more clearly underwater. Include a diagram in your explanation.
A 2.65 kg object is moving in a plane, with its x and y coordinates given by x = 2t2 - 3 and y = 2t3 + 6, where x and y are in meters and t is in seconds. Find out the magnitude of the net force acting on this object at t = 2.00 s.
question1find out a magnitude and direction of the electric field this arrangement of charges produces at point that
A 5.8 box is on a frictionless 39 slope and is connected via a massless string over a massless, frictionless pulley to a hanging 1.9 weight. Illustrate what is the tension in the string once the box begins to move?
For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in water at this energy
If the pressure of the 3.0-cm3 volume is reduced to 2.6 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
A 1055-kg van, stopped at a traffic light, is hit directly in the rear by a 790-kg car traveling with a velocity of +2.15 m/s. What is the final velocity of each vehicle?
a uniform thin rod of length 0.50 m and mass 4.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before the impact
You are moving into an apartment and take the elevator to the 6th floor. How much work does the elevator do on you alone (without belongings) on the downward trip, which is also made at a constant velocity
Carbon-14 has an activity of 0.25 Bq per gram of carbon for living organisms. The half-life of Carbon-14 is 5730 years. how old is the material
In a circuit of two lamps in series, if the current through one lamp is 2 A, what is the current through the other lamp
Two objects have masses m and 5m respectively.They both are placed side by side on a frictionless inclined plane and allowed to slide down from rest.
A novice skier starting from rest slides down a frictionless 32 degree incline whose vertical height is 125 meters
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