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Calculate the blackbody temperatures (K) from the peak wavelengths given in a) through b), and the peakwavelengths (m) from the temperature given inc)
a) 180 nm (surface of hot star)b) 2.4 μm (surface of cold star)c) 60 K (interstellar cloud)
An object with mass 2.6kg is attached to a spring with spring stiffness constant 260N/m and is executing simple harmonic motion. find the maximum velocity attained by the object
Lasers are used extensively in eye surgery to remove unwanted material from the eye or reshape the eye lens. If this energy is delivered to a spot on the eye that is 1.0 mm in diameter, what is the intensity during a pulse
Find out the altitude of the plane
The angular velocuty of the elctron in the lowest Bohr orbit of the hydrogen atom is about 4*10^16 s^-1. Determine the Larmor frequency in a field of 2 T
q1. two boats start together and race across a 46 km-wide lake and back. boat a goes across at 60 kmh and returns at 60
A double-slit interference experiment is performed with light from a laser. The separation between the slits is 0.59 mm, What is the wavelength of the laser light
Two identical 1.70kg masses are pressed against opposite ends of a spring of force constant 1.70N/cm, Find the maximum speed of each mass when it has moved free of the spring on a smooth
A woman stands on a scale in a moving elevator. Her mass is 69.0 kg, and the combined mass of the elevator, What does the scale read (in N) during the acceleration
q1. a simple harmonic oscillator consists of a block of mass 1.20 kg attached to a spring of spring constant 184 nm. as
An unstable elementary particle comes in two varieties, one with positive and one with negative electric charge, What is the difference (R+)-(R-) between the two rates, with its error
As measured in an inertial coordinate system S, what are the initial velocities of the protons measured in an inertial coordinate system S' in standard orientation and moving as speed V=0.9c relative to S
tennis ball of mass 0.4Kg rebounds from a tennis racquet. What was the force experienced by the tennis racquet during it's time in contact with the ball
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