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Q1. A ship sets out to sail to a point 156 km due north. An unexpected storm blows the ship to a point 118 km due east of its starting point. How far should it now sail to reach its original destination?
Q2. Electrons in a photoelectric effect experiment emerge from a tungsten surface with a maximum kinetic energy of 1.30 eV. What is the wavelength of light?
A 55.0 kg crate rests on a level floor at a shipping dock. What horizontal pushing force is required to just start the crate moving
a stationary orbit is done with a period equal to the time it takes the planet to revolve one time so that the satellite appears to remain at the same point in the sky all the time. Find the radius of a stationary orbit
A total of 2.99·106 electrons are placed on an initially uncharged wire of length 2.25 m. a) What is the magnitude of the electric field a perpendicular distance of 0.494 m away from the midpoint of the wire? b) What is the magnitude of the accele..
An electron is released from rest at the negative plate of a parallel plate capacitor. How fast is the electron moving just before it reaches the positive plate
suppose that the engineer is at x = 0 when, at t = 0, he first spots the locomotive. Sketch x(t) curves for the locomotive and high-speed train for the cases in which a collision is just avoided and is not quite avoided. Do this on paper. Your ins..
A flask is filled with 1.51 L (L = liter) of a liquid at 98.8 °C. When the liquid is cooled to 15.6 °C, What is the coefficient of volume expansion of the liquid
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.50 kg, How far will m1 descend below its initial level and Find the velocity of m1 after 1.80 s
A forward horizontal force of 12N is used to pull a 240N crate at constant velocity across a horizontal floor. What is the coefficient of friction
She comes to rest 3.00 m under the surface of the water. Identify the magnitude of the average force that the water exerts on the diver. This force is nonconservative.
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
If the hydrogen atoms undergoes a transition between these states, it emits a photon with a characteristic wavelength of 21 cm. What is the energy difference between the 2 states
Two identical capacitors store different amounts of energy: capacitor A stores 3.3 10-3 J, and capacitor B stores 2.5 10-4 J. Find the voltage across the plates of capacitor A
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