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A. You are in a spaceship travelling at 0.99c. You notice something green (λ= 520nm) in your window. If it is a forward facing mirror, what was the wavelength in the frame it was emitted?
B. What would the answer to part A be if you saw this light out of a rear facing window?
A hanging wire made of an alloy of aluminum with diameter 0.13 cm is initially 2.5 m long. what is Young's modulus for this alloy of aluminum
While a roofer is working on a roof that slants at 43.0 above the horizontal, If it starts 4.60m from the lower edge of the roof, how fast will the toolbox be moving
A proton moves with a speed of 0.990c. Compute its kinetic energy and Compute its total energy
A toaster rated at 1055 W operates on a120 V household circuit and a 4.00 m length of Nichrome wire as itsheating element. The operating temperature of this element is304°C. What is the cross-sectionalarea of the wire?
While surveying a cave, a spelunker follows a passage 190{\rm m} straight west, then 210{\rm m} in a direction 45.0^\circ east of south, and then 260{\rm m} at 30.0^\circ east of north. After a fourth unmeasured displacement, she finds herself back w..
A 1.09-µF capacitor is charged by a 31.0-V power supply. The fully charged capacitor is then discharged through a 9.8-mH inductor. Find the maximum current in the resulting oscillations.
capacitor a with a capacitance capacitor a 35 uf is fully charged by a battery to a potential difference of 12 v and
A bucket is filled with a combination of water (density 1000 kg/m3) and oil (density 700 kg/m3). what is the pressure at the interface between the oil and the water
The internal energy of a gas is 547.J. The gas is compressed adiabatically, and its volume decreases by 125.cm3, what is the internal energy of the gas after the adiabatic compression
A cowboy, 6.8 feet tall with his hat, views his full image in a plane mirror. Find the image height of a man 1.9 m tall, standing 3.3 m from the ornament. A spherical silver Christmas tree ornament, 11 cm in diameter, acts as a mirror.
A cube of copper with each edge having the dimension 12.7 mm, is put in a vise and squeezed by a force of 215 N exerted by either side of the vise. What is the stress in the copper cube
A banked circular highway curve is designed for traffic moving at 75 km/h. The radius of the curve is 153 meter. Find minimum coefficient of friction between tires and road
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