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White light illuminates an oil film on water. Viewing it directly from above, it looks red. Assume that the reflected red light has a wavelength of 615 nm in air, and that the oil has a thickness of 2.640e-7 m. What is the refractive index of the oil? Assume that the refractive index of water is greater than that of the oil.
An unstretched spring with spring constant 21 N/cm is suspended from the ceiling. A 3.3 kg mass is attached to the spring and let fall. To the nearest tenth of the centimeter, how far does it stretch the spring.
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
An RC series circuit has R = 1.35 kOhm, L = 225 mH, and C = 2.50 microFarads and is connected across a 200 V (rms), find the impedance of the RC combination
The magnetic field inside a superconducting solenoid is 4.1 T. The solenoid has an inner radius of 2.2 cm and a length of 29.0 cm. Find the magnetic energy density inside the solenoid
If a car travelling at 30m/s will skid 18.00 m when its brakes lock and the car slides, how far would it skid if it is travelling at 40 m/s when its brakes lock? (This question is typical on some driver's license exams. Note: 10 m/s = 22 mph)
Consider a system composed of a mixture of 2.50kg of ice and 50 gr of liquid water and a small separate container of finely powdered salt. This physical system is contained in a fully insulated container that prevent.
A child throws a ball downward from a tall building. Note that the ball is thrown, not dropped and disregard air resistance. What is the acceleration of the ball immediately after it leaves the child's hand
A 1.0-kg block of ice is initially at 0°C. Heat is added to this system, and the entropy is increased by 357.1 J/K. How much of the ice melts
Two identical point charges are fixed at opposite corners of a square whose sides have a length of A test charge, Determine the speed of the test charge when it reaches the center of the square
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J
A cyclist starts from rest and pedals so that the wheels make 7.6 revolutions in the first 4.9 s. What is the angular acceleration of the wheels
Two blocks slide on a horizontal, frictionless surface with two springs on opposite sides. Block A has mass 1.14 kg and Block B has mass 3.27 kg. What is the maximum compression of Spring 2
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