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Question:
You're driving down a highway, and you decide to accelerate flaunting the speed limit, you accelerate way up there. At one point, you're going (a) 100km/hr. Later, you're going (b) 0.25 times the speed of light.
For each case, how much is your car's length contracted, and how slow does time go for you? Your car is 15 feet long (4.5 meters), and take t0 to be 1 second.
A relatively loud sound can be created because a standing wave occurs in the bottle. Explain why the pitch of the sound becomes higher
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 2.1 mT. Estimate the time it takes to complete one revolution
Sketch the xy plane with the local fields you found indicated at their respective locations. What is the common electric potential at all of the coordinates listed above?
Which particle will, when given off, cause the atomic number of the decaying nucleus to increase by one - Which element has no stable isotopes, only having radioactive ones?
The spacing between atomic planes in a crystal is0.120nm. 12.0keV x rays are diffracted by this crystal. What is the angle of first-order diffraction?
A diver shines a flashlight upward from beneath the water at a 43.7 %u2218 angle to the vertical. At what angle does the light leave the water
A pipe open at both ends has a fundamental frequency of 300 Hz when the temperature is 0°C. What is the length of the pipe? What is the fundamental frequency at a temperature of 30°C?
An AC voltage of the form ?V = (85 V) sin (330 t) is applied to a series RLC circuit. If R = 42 ?, C = 29 µF, and L = 0.3 H, find the rms current in the circuit
an object weighs 15N in air and 13N when completely submergedin water. What is the volume of water displaced by the submerged object
On a frictionless surface, a sliding box collides and sticks to a second identical box that is initially at rest. What percentage of the initial kinetic energy of the system
A helicopter lifts a 81 kg astronaut 17 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. How much work is done on the astronaut by the force from the helicopter?
A boy shoots a BB gun horizontally at a target 15 m away. The gun is aimed directly at the center of the target, but the small metal BB hits 56 cm lower. avoid any air resistance, what was the initial speed of the BB.
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