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In the figure below, a frictionless roller coaster car of mass m tops the first hill with speed v0 at height h. What is the speed of the car at (a) point A, (b) point B, and (c) point C? (d) How high will the car go on the last hill, which is too high for it to cross? State your answers in terms of the given variables and g.
At time t = 0 and at position x = 0 m along a string, a rightward (+x dir) traveling sinusoidal wave with frequency of 220 Hz has displacement y = +4.0 mm, What is the amplitude of this wave
question1a parachutist relies on air resistance mainly on her parachute to reduce her downward velocity. she and her
Unpolarized light of intensity I0 is incident on a series of four polarizers, What fraction of the incident light will pass through the series
questionelectric charge on the earths surface and in the earths atmosphere produces an electric field that on a clear
On a hot day, the temperature of an 81099-L swimming pool increases by 4 degrees celcius. What is the net heat transfer during this heating
A 2000kg car accelerates from 20 to 60km/h on an uphill road. Determine the work done by the engine
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
five resistors are connected to a battery with an emf of 12 V and internal resistance of 1 ohm. calculate the external resistance of the circuit
A camera has a lens with a focal length of 25.6 cm. how far from the film should the lens be placed
The maximum pressure that can be obtained in your local mechanic's hydraulic pump is 2.0 x 10^5 Pa. what is the largest mass (of car) for which the pump will work
You are on a cruise ship traveling north at a speed of 13.0 m/s with respect to land. If you walk north toward the front of the ship, with a speed of 2.7 with respect to the ship, what is your velocity with respect to the land
Discuss the position and size for the n = 1 state of Harmonic Oscillator. How do you picture this state? What is her size relative to the well wall? Does she penetrate the wall much?
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