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a. What is the equation used to find the angle of refraction? Identify each variable.
b. A light wave moves from diamond (n = 2.4) into water (n = 1.33) at an angle of 24°. What angle does it have in water?
Which of the following is NOT true about the movement of electrons in a simple circuit?
A 124 kilogram balloon carrying a 22 kilogram basket is descending with a constant downward velocity of 18.8 m/s. Determine how high was the balloon when the rock was thrown out
The focal length of a relaxed human eye is approximately 1.71 cm, Calculate the focal length of the eye when we focus closely
124/55 Cs has a half-life of 30.8s. If we have 5.3µg initially, how many Cs nuclei are present and What is the activity at this time
When an 78.3-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 2.08 x 103 J. By how much does the potential energy of a 19.5-kg child increase when the child climbs a normal st..
Compute the angular momentum of the earth arising from the following motions. Earth's orbital motion around the sun
A +13.86 nC charge is located at (0,10.55) cm and a -3.8 nC charge is located (4.43, 0) cm.Where would a -13.6 nC charge need to be located in order that the electric field at the origin be zero?
The complete combustion of 0.501 g of a snack bar in a calorimeter (Ccal = 6.15 kJ/°C) raises the temperature of the calorimeter by 1.85 °C.
From the top of a 70 m building, you throw a ball straight up at 6 m/s. The ball misses the building on the way down. What is the maximum height of the ball? What is the velocity of the ball after 2 s?
Suppose the gravitational force between two massive spheres is 100 N. If the distance between the spheres is doubled, what is the force between the masses.
A train at a constant 71.0 km/h moves east for 37.0 min, then in a direction 51.0° east of due north for 29.0 min, and then west for 47.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip
If you divide each score in the distribution by 3, what its he standard deviation of the new distribution? Please explain how you got answer.
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