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An object is placed 17.4 centimeter in front of a convex mirror, the image being 0.61 centimeter behind the mirror. A second object, twice as tall as the first one, is located in front of the mirror, but at a different location. The image of this second object has the similar height as the other image. Find how far in front of the mirror is the second object located?
Fraternal twins Jack and Jill are sent in two different ships to fetch water from the planet Kusbane that is 20 lightyears away. what is the age difference between Jack and Jill when Jack's ship arrives at Kusbane
a sound wave traveling in 26 degrees C air has a pressure amplitude of 0.500 Pa. (assume that the density of air is 1.29 kg/m^3). What is the intensity of the wave
The NO molecule has a doubly degenerate electronic ground state and a doubly degenerate excited state at 121.1 cm^-1. Calcuclate the electronic contribution to the molar heat capacity of the molecule up to 500K.
A uniform drawbridge must be held at a 37 angle above the horizontal to allow ships to pass underneath. What is the angular speed of the drawbridge
a 2.2 kg object slides down a frictionless track starting 0.35 m above the ground to a horizontal surface where it
A subatomic particle has an unknown lifetime τ. The particle is created at t = 0 and travels around the Earth's equator at speed 0.9896c. If the particle decays at the moment it completes one trip around the Earth, what is?
a 2m long uniform bar that weighs 10n is used to hold a 3n sign. a cable is attached to one end of the bar and the
A 275 kg piano slides 4.4 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (Fig. 6-36). The effective coefficient of kinetic friction is 0.40. a)Calculate the force exerted by the man. b..
Light with wavelength 595nm is incident on a 2.6?m wide slit. Find the angular width of the central peak in the diffraction pattern
An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. Determine how far into the block does the arrow penetrate
A violin string has a length of 0.360 m and is tuned to concert G, with fG = 392 Hz. (a) How far from the end of the string must the violinist place her finger to play concert A, with fA = 440 Hz? cm from the bridge (b) If this position is to remain ..
An ambulance with a siren emitting a whine at 1,190 Hz overtakes and passes a cyclist pedaling a bike at 2.1 m/s. How fast is the ambulance moving
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