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A roller coaster at an amusement part starts out an a level track 50.0 m long and then goes up a 25.0 m incline at an angle of 30 degrees to the horizontal. It then goes down a 15 m ramp with an incline of 40 degrees to the horizontal. when the roller coaster has reached the bottom of the ramp, what is its displacement from the starting point?
A pair of narrow slits, separated by 1.8 mm, is illuminated by a monochromatic light source. Light waves arrive at the two slits in phase. What is the wavelength of the monochromatic light
The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.800 m/s2. Find out the tension in the rope.
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Determine the specific heat of the unknown second sample
A 1.0-C charge is 15 m from a second charge, and the force betweenthem is 1.0 N. What is the magnitude of the second charge?
An 1800W toaster, a 1.3kW electric frying pan, and a 120 W lamp are plugged into the same 35A, 140V circuit. what is the resistance of each device
An astronomical telescope uses an eyepiece of power +100.0 D. what are the power of the objective and the magnifcation of the telescope
Light passes through a 230 lines/mm grating and is observed on a 1.0m wide screen located 1.3m behind the grating. Three bright fringes are seen on both sides of central maximum.
A 1.50 kg mass attached to a spring oscillates with a period of 0.365 s and an amplitude of 15.5 cm. Find the maximum speed of the mass
An ideal gas undergoes the process a - b - c. Pa = pc = 200. kPa, Vb = Vc = 40.0x10-3m3, and Pb = 400.kPa. How much work is done by the system in this process
(a) Calculate the number of gas molecules per cubic centimeter at this pressure. (b) What is the mean free path of the gas molecules if the molecular diameter is 2.12 x 10-8 cm.
A long rope is suspended from the ceiling. Waves are started from the bottom traveling up the rope, Do they get faster or slower? Explain why this occurs
An x-ray photon with wavelength 5.0 pm collides with a free electron initially at rest. find the maximum possible kinetic energy acquired by the electron
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