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A thin flashlight beam traveling in air strikes a glass plate at an angle of 52 degree with the plane of the surface of the plate. If the index of refraction of the glass is 1.4, find what angle will the beam make with the normal in the glass?
assume all temperatures to be exact and neglect significant figures for small changes in dimension. on a warm day 88 f
What is the length of a box in which the minimum energy of an electron is 1.1 x 10^-18J
A car starts from rest and moves around a circular, horizontal,level track of radius 30.0 m. Its speed increases at the constantrate of 0.500 m/s2. (a) What is the magnitude ofthe net acceleration 15.0 s later?
A thin film of oil (n = 1.10) is located on a smooth, wet pavement. When viewed perpendicular to the pavement, the film reflects mainly strongly red light at 640 nm and reflects no light at 512 nm. How thick is the oil film?
q1. a thermos contains 161 cm3 of coffee at 82.0 degc. to cool the coffee you drop two 10.8-g ice cubes into the
A wheel is spinning at 19 rad/s. Over a period of 50 s it is spinned up to 424 rad/s. Determine its angular acceleration while it was spinning up
Two 2.50-cm-diameter disks spaced 1.70mm apart form a parallel-plate capacitor. The electric field between the disks is 5.00×105V/m. What is the voltage across the capacitor
question1a roller coaster car moves 248 ft horizontally and then rises 121 ft at an angle of 30deg above horizontal. it
A 1.00 kg block of ice at 0 C and 1.00 atm melts completely to water at 0C. calculate the change of the etrophy of the ice during the melting process
The average coefficient of volume expansion for carbon tetrachloride is 5.81 multiplied by 10-4 (°C)-1. If a 48.5 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the tem..
If the tennis racket and ball are in contact for 9.3 milliseconds, find the average force that the racket exerts on the ball? Define how does this compare to the gravitational force on the ball
A high jumper leaps into the air with an initial speed of 5.8 m/s. Find how high will she be at the top of her flight when v=0
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